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Best Training Underpants for Baby Boys of 2026

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Bonnie Salem

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Training Underpants are an essential product for baby boys who are in the process of transitioning from diapers to using the toilet. These specially designed underpants are made from soft and comfortable materials, providing a gentle and breathable fit for little ones. With their absorbent core and leak-proof lining, Training Underpants offer protection against accidents while allowing toddlers to feel wetness, promoting awareness and encouraging independence in the potty training journey. Featuring fun and colorful designs, these underpants make the transition from diapers to big kid underwear exciting and enjoyable for both parents and children alike.

At a Glance: Our Top Picks

Top 10 Training Underpants for Baby Boys

#TOP 1

Marvel Superhero Potty Training Pants 3T

Marvel Superhero Potty Training Pants 3T Cover

Superhero 7PK-10PK Potty Training Pants with Success Chart & Stickers with Spiderman, Hulk & more sizes 18M, 2T, 3T, 4T

The Marvel Superhero Training Pants are designed to make potty training easier and more comfortable for your toddler. Made with a soft cotton outer layer and a polyester lining inside, they keep your child feeling cozy while helping them notice small accidents. This encourages your little one to learn when it’s time to use the potty. The pants are machine washable, making cleanup simple for you. Plus, they come with a fun chart and stickers to track progress, turning potty training into an engaging and rewarding experience. The tagless, stretchy waistband and leg openings make it easy for your child to pull the pants on and off independently.

9.9
FTB Score

What We Like

  • Comfortable fit
  • Easy to pull on/off
  • Fun, vibrant designs
  • Absorbent for accidents
  • Durable quality

What We Don't Like

  • Sizing runs slightly small
  • Sticker chart not useful

What Customers Say

"I love how easy these are for my toddler to pull up and down by himself during potty training. They fit well and help him feel when he's wet, which is great for learning. The sticker chart wasn't impressive, but we still made use of the stickers."

"These training undies are super comfortable and absorbent, and my little one is a big fan of the cute, colorful designs. I really appreciate the extra fabric for accident protection—they fit my 3-year-old nicely and are a good value for the price."

"I bought these for my almost 3-year-old and the sizing was perfect. The designs are adorable and the quality holds up well after many washes; the colors are still vibrant. Absorbency is just right for training."

#TOP 2

Paw Patrol Toddler Potty Training Pants with Chart and Stickers

Paw Patrol Toddler Potty Training Pants with Chart and Stickers Cover

Paw Patrol Boys Toddler Potty Training Pant and Starter Kit with Stickers and Tracking Chart in Sizes 18M, 2T, 3T, 4T, 10-Pack Training Pant, 3T

The Paw Patrol Potty Training Pants for toddlers are made of ultra-soft combed cotton outer shell and 100% Polyester lining on the crotch area. These training pants come with a chart and stickers to track your child's progress. The pull-on closure, tagless waistband, and leg opening ensure maximum comfort for your little one. The Paw Patrol characters printed on the pants make it fun for your child to transition from diapers to underwear. Available in sizes 18 Month, 2T, 3T, and 4T. Machine washable.

9.8
FTB Score

What We Like

  • Excellent absorbency
  • Comfortable fit
  • Fun prints and patterns
  • Good for potty training
  • Soft material

What We Don't Like

  • Logo stickers may peel
  • Loose after washing

What Customers Say

"My child is just starting to learn to use the potty, and these underwear have been a lifesaver for minimizing messes. They're super absorbent and comfortable, making accidents much easier to handle."

"My son is skinny and hard to fit, but the 18M size was perfect—no gapping, snug fit. The absorbency contains accidents well, and he loves the cute patterns."

"We picked these because my son is obsessed with Paw Patrol, and they've actually motivated him to try potty training. The quality is great, with just enough absorbency for small leaks, and they fit true to size."

#TOP 3

BIG ELEPHANT Cotton Potty Training Pants 3T

BIG ELEPHANT Cotton Potty Training Pants 3T Cover

BIG ELEPHANT Baby boy's and Girl's Potty Training Pants, 100% Cotton Soft and Absorbent, 3T

The BIG ELEPHANT Training Pants offer your child soft, 100% cotton comfort that feels gentle on their skin, helping them stay cozy throughout the day. The elastic waistband makes it easy for you and your toddler to pull the pants on and off quickly, simplifying potty time transitions. These pants feature multiple absorbent layers, providing reliable protection against small accidents so you can worry less. Plus, their fun patterns are designed to make potty training more exciting for both boys and girls, encouraging your little one to stay motivated and engaged during this important stage.

9.6
FTB Score

What We Like

  • Soft, comfortable material
  • Good absorbency for small accidents
  • Holds up after many washes
  • Easy for toddlers to pull on/off
  • Accurate sizing for most

What We Don't Like

  • Runs slightly small
  • Air dry takes extra time

What Customers Say

"I love how soft and comfy these training pants are for my toddler! They really feel like regular underwear, not bulky at all. Accidents are contained well, and they still look new after many washes. I’ll definitely be picking up more!"

"I bought the 12-24 month size at first, but it was a bit snug for my son who typically wears 12-18 months clothes. The 2T fits perfectly, super soft, and doesn’t stain easily. Highly recommend for potty training!"

"These undies are thick and absorbent enough to prevent big messes during accidents. My child is able to pull them up and down with no trouble, and they’re comfortable even for kids with sensory sensitivities."

#TOP 4

MooMoo Baby Potty Training Pants

MooMoo Baby Potty Training Pants Cover

MooMoo Baby 8 Packs Potty Training Pants Cotton Absorbent Training Underwear for Toddler Baby Boy 3T

MooMoo Baby Training Pants are perfect for toddlers who are learning to use the potty. With six layers of absorbent material in the front and back crotch, these training pants help prevent leakage and give parents enough time to change their baby. The premium cotton material with a muslin inner layer is soft and gentle on sensitive skin, reducing the risk of diaper rash. The stretchy waistband and leg holes provide a comfortable fit and make it easy to pull the pants up and down. The washable and reusable design saves money on disposable diapers. These training pants are available in sizes ranging from 2T to 7T.

9.6
FTB Score

What We Like

  • Soft cotton material
  • Adorable fun designs
  • Good absorbency for small accidents
  • Easy for kids to pull up
  • Durable after multiple washes

What We Don't Like

  • May leak with bigger accidents
  • Fit may vary for chubby legs

What Customers Say

"Potty training was a struggle until I tried these—the extra absorbent layer in the front really helps catch small leaks, so there are no puddles or unnecessary outfit changes. The quality is better than other brands, and they’re just more comfortable for my son. I recommend them for anyone needing a few reliable backup pairs."

"After switching from disposables, I noticed my daughter could feel when she was wet, which really helped her understand potty training. She absolutely loves the cute patterns and can pull them up and down by herself. They wash well, keep their shape, and don't leak onto furniture. These were exactly what we needed."

"As a mom of two toddlers, the MooMoo Baby Potty Training Pants have been a real game-changer for us. They’re super absorbent for small accidents, the cotton is gentle on skin, and the designs are adorable. They fit snugly, hold up to frequent washing, and come in a great value pack. Potty training is so much easier now."

#TOP 5

EZ Moms 6-Pack Toddler Training Underwear

EZ Moms 6-Pack Toddler Training Underwear Cover

EZ Moms 6 Packs Toddler Potty Training Underwear for Boys Training Pants Toddler Training Underwear 2t-3t Training Potty Toilet Training Pants Absorbent Training Underwear 3t Training Panties

EZ Moms Toddler Training Pants are designed to make potty training easier for you and your little one. With six layers of absorbent material, these pants provide excellent protection against leaks, giving you peace of mind during transitions from diapers. The unique ribbed leg openings ensure a snug fit while preventing accidents. Plus, the high-quality fabric offers comfort and durability, so your child feels great all day. Lastly, the stylish designs not only look good but also boost your child's confidence as they embark on their potty training journey.

9.5
FTB Score

What We Like

  • Soft and comfortable fit
  • Good absorbency for small accidents
  • Stretchy and fits as expected
  • Easy to clean
  • Great value pack

What We Don't Like

  • Not fully leak-proof
  • Absorbency may vary

What Customers Say

"I've found these training underwear to be super soft and comfortable for my son. The fit matched the size chart perfectly and they're absorbent enough to catch small accidents. I also really appreciate the included mesh laundry bag and reward calendar – those details make potty training a bit more fun!"

"As a parent of a bigger kid, I was relieved to find these in larger sizes that actually fit well. They're very absorbent, and when accidents happen, the outside just gets a little damp – no puddles to clean up. Plus, they’re easy for my son to pull up and down, which is a huge bonus during training."

"These are comfortable and fit my daughter perfectly, but unfortunately, they didn’t offer much absorbency for overnight accidents. They feel like regular underwear and didn’t keep the mess contained, so I’ll be requesting a refund. The material is soft, but I was hoping for better performance."

#TOP 6

MooMoo Baby 6 Packs Potty Training Underwear

MooMoo Baby 6 Packs Potty Training Underwear Cover

MooMoo Baby 6 Packs Potty Training Underwear Absorbent Vehicle Training Pants for Toddler Boys Pee Pants 2T-7T

MooMoo Baby Training Underwear is a high-quality and innovative option for potty training your toddler boys. Made with organic and eco-friendly materials, these training underwear are gentle on sensitive skin and help prevent diaper rash. The 6-layer leakproof structure provides excellent absorption, reducing the chances of accidents and giving parents peace of mind. The snug fit with a stretch waistband and leg holes ensures a comfortable fit and easy pull-up and pull-down. These washable and reusable training pants are not only cost-effective but also feature adorable vehicle designs that vehicle-loving kids will adore. Available in various sizes, MooMoo Baby Training Underwear is the perfect choice for a successful transition from diapers to big-boy underwear.

9.3
FTB Score

What We Like

  • Soft and comfortable fabric
  • Fun, kid-friendly designs
  • Good absorbency for accidents
  • Encourages potty training habits
  • Durable and easy to wash

What We Don't Like

  • Not fully leak-proof
  • Sizing may vary after washing

What Customers Say

"My toddler absolutely loves these because of the fun vehicle designs and how soft and comfy they feel. They’ve made potty training easier since they’re thicker than regular underwear and help him realize when he’s wet, but I don’t have to clean up big messes. I sized up and after washing, they fit him perfectly."

"I was surprised at how well these undies contain accidents—they save me from having to do a full outfit change. They’re breathable, realistic, and perfect for building my child’s potty confidence. I love that they combine the freedom of underwear with some built-in protection, and I’ve already bought another pack."

"My daughter is excited to wear them every day because of the cute patterns. They help her get used to being out of pull-ups, and even when she has an accident, it doesn’t soak the floor right away. It’s really helping her learn to use the potty."

#TOP 7

BIG ELEPHANT Toddler Potty Training Pants 3T

BIG ELEPHANT Toddler Potty Training Pants 3T Cover

BIG ELEPHANT 10 Pack Toddler Potty Training Pants, Absorbent Underwear for Baby Boys, 3T

The BIG ELEPHANT Training Pants offer a helpful step for your toddler moving from diapers to regular underwear. They look and feel like real panties, helping your child build confidence and independence. Made from soft 100% cotton, these pants are gentle on sensitive skin and feature a special padded layer that absorbs small accidents, keeping clothes dry. The water-resistant design prevents leaks while still letting your child feel wetness, encouraging timely trips to the potty. Plus, the stretchy waistband and comfy leg openings make it easy for your little one to put them on and take them off all by themselves.

9.1
FTB Score

What We Like

  • Soft and comfortable fabric
  • Good absorbency for small accidents
  • Fun and cute designs
  • Easy to wash and durable
  • True to size, fits well

What We Don't Like

  • May leak with larger accidents
  • Sizing runs slightly small

What Customers Say

"I've found these training underwear to be very soft and comfortable for my toddler. They do a great job catching small accidents without leaking everywhere, which really makes cleanup easier for me. My child loves the fun designs, and I'm impressed with how well they hold up through multiple washes."

"My son has been using these during potty training and I think they're fantastic for the value. As long as you change them promptly, they rarely leak. They're soft, great quality, and don’t shrink in the wash. Potty training isn’t easy, but these definitely help make the process smoother."

"We’ve been using these for my daughter, and I like that they’re thick enough to prevent puddles, but not so absorbent that she doesn’t notice when she’s wet. The cute floral prints are a plus, though I’d say the sizing runs a bit small—I’ll size up next time. They're sturdy and wash well with no lingering stains."

#TOP 8

Kakamin Baby Boys Dinosaur Trainer Underwear

  • Kakamin
  • Babyku001-T3
  • Blue-grey-white
Kakamin Baby Boys Dinosaur Trainer Underwear Cover

Kakamin Baby Boys Dinosaur Trainer Underwear Little Kids Truck Underpants Potty Toddler Boys Shark Boxer Briefs 3T Mixedcolour

The Kakamin Boys Trainer Underwear is made from 100% cotton, making it soft and comfortable for your little one while also being easy to clean in the washing machine and dryer. These training pants are designed to keep your child dry with strong urine absorption, which helps prevent leaks and protects outer clothes, socks, and shoes from getting wet. You’ll appreciate the boyshort cut that fully covers the backside and fits snugly at the waist with a soft elastic band, offering added comfort throughout the day. Plus, the set comes in a fun assortment of six colorful prints and solids, making potty training a little more exciting for your toddler.

8.9
FTB Score

What We Like

  • Cute design and style
  • Thick and absorbent front
  • Soft and comfortable fabric
  • Good value for money
  • True to size fit

What We Don't Like

  • Some leakage after accidents
  • Elasticity loosens after washes

What Customers Say

"I love how these training pants are super cute and thick in the front, making them feel just like 'Daddy's' underwear. My child thinks they're so much cooler because of that!"

"My son is all belly and these boxers are super soft, wash well, and keep their durability. The thickness reminds me of Victoria's Secret period panties, but make sure you pick the right size or you'll get leaks."

"We switched straight from diapers to these, and they absorbed a little in accidents, making cleanup easier. The quality is good, my son loved the designs, and he seemed really comfortable wearing them."

#TOP 9

EZ Moms Toddler Boys Potty Training Underwear 6-Pack

EZ Moms Toddler Boys Potty Training Underwear 6-Pack Cover

EZ Moms 6 Packs Absorption Toddler Potty Training Underwear for Boys 100% Cotton Toilet Training Pants 2T-3T Leakproof Reusable Kid Confident Toddler Panties Pee Pants with Potty Sticker Chart

The EZ Moms Toddler Training Pants offer a reliable solution to help you say goodbye to messy potty accidents. Made from soft, durable cotton, these pants provide comfort and withstand frequent washing, making potty training easier for both you and your child. Their special absorbent layer offers extra protection against leaks, helping your little one stay dry and confident throughout the day. The stretchy waistband ensures a comfortable fit that moves with your child, whether playing, napping, or sleeping. Plus, the set includes six pairs, so you’ll have plenty on hand during the entire training process, making your life simpler and stress-free.

8.8
FTB Score

What We Like

  • Soft, breathable cotton fabric
  • Comfortable fit and stretchy waistband
  • Absorbs small accidents well
  • Fun, appealing designs
  • Helps transition from diapers

What We Don't Like

  • May leak with larger accidents
  • Absorbency less than diapers

What Customers Say

"My experience with these training pants has been fantastic. The 100% cotton fabric feels incredibly soft and comfortable, and it's gentle even on my son’s sensitive skin. The padding slows down leaks enough to protect clothes and floors, while still letting him notice when he’s wet, which is perfect for potty learning. The fit is true to size, and the waistband never digs in. I would definitely recommend these to other parents starting potty training."

"These undies have been a game-changer for potty training! My little one loves the fun designs and soft, thick material—he’s excited to wear them every day. They do a great job of catching small accidents, and the waistband is snug but comfortable. The transition out of diapers has been so much easier, and I’d suggest these to anyone preparing for potty training."

"I was pleased with how adorable and soft these training pants are. They fit my 17-month-old daughter perfectly and are exactly what I wanted for starting potty training. The value for the price is excellent, and the cute prints are a bonus. I’m very happy with this purchase!"

BIG ELEPHANT 3T Training Underwear 10-Pack

BIG ELEPHANT 3T Training Underwear 10-Pack Cover

BIG ELEPHANT 10-Packs Training Underwear Absorbent Toddler Potty Trained Pants for Boys and Girls, 3T

The BIG ELEPHANT Training Pants are designed to make potty training easier and more comfortable for your toddler. Made from soft cotton, these pants are gentle on delicate skin and help keep your child cozy. The thick absorbent padding catches small accidents, so your little one can feel when they’re wet, encouraging awareness and independence. The flexible waistband fits snugly to prevent leaks while letting your child pull the pants on and off by themselves, boosting confidence. Plus, fun prints and a range of sizes up to age 10 make potty training enjoyable and suitable for kids at different stages.

8.6
FTB Score

What We Like

  • Thick and soft material
  • Good absorbency for small accidents
  • Easy for toddlers to pull on
  • Encourages potty training awareness
  • Great value for the price

What We Don't Like

  • Limited absorption for bigger accidents
  • Shrinks slightly in the dryer

What Customers Say

"I find these training pants to be perfect for toddlers who are just starting to use the toilet independently. They're thick enough to absorb minor leaks but still let my child feel wetness, which helps with potty training. Great value and quality—I've already bought multiple sets!"

"These are my favorite training underwear for my little one. They fit well, are comfortable, and my child can easily pull them up and down. They hold some urine if an accident happens, and I love that they help with the transition from diapers."

"The material is soft and thick in all the right places, and the designs are adorable. They do let my child feel when they're wet, which I think is important for learning. They don't always catch every drop if there's a big accident, but overall, I'm happy with them."

Training Underpants for Baby Boys Comparison Table

#TOP 1 Marvel Superhero Potty Training Pants 3T Cover

Marvel Superhero Potty Training Pants 3T

#TOP 2 Paw Patrol Toddler Potty Training Pants with Chart and Stickers Cover

Paw Patrol Toddler Potty Training Pants with Chart and Stickers

#TOP 3 BIG ELEPHANT Cotton Potty Training Pants 3T Cover

BIG ELEPHANT Cotton Potty Training Pants 3T

#TOP 4 MooMoo Baby Potty Training Pants Cover

MooMoo Baby Potty Training Pants

#TOP 5 EZ Moms 6-Pack Toddler Training Underwear Cover

EZ Moms 6-Pack Toddler Training Underwear

#TOP 6 MooMoo Baby 6 Packs Potty Training Underwear Cover

MooMoo Baby 6 Packs Potty Training Underwear

#TOP 7 BIG ELEPHANT Toddler Potty Training Pants 3T Cover

BIG ELEPHANT Toddler Potty Training Pants 3T

#TOP 8 Kakamin Baby Boys Dinosaur Trainer Underwear Cover

Kakamin Baby Boys Dinosaur Trainer Underwear

#TOP 9 EZ Moms Toddler Boys Potty Training Underwear 6-Pack Cover

EZ Moms Toddler Boys Potty Training Underwear 6-Pack

#TOP 10 BIG ELEPHANT 3T Training Underwear 10-Pack Cover

BIG ELEPHANT 3T Training Underwear 10-Pack

Brand Marvel Paw Patrol BIG ELEPHANT MooMoo Baby EZ Moms MooMoo Baby BIG ELEPHANT Kakamin EZ Moms BIG ELEPHANT
Department baby-boys baby-boys unisex-baby baby-boys baby-boys baby-girls Unisex Baby baby-boys - baby-boys
Origin Imported Imported Imported Imported Imported Imported Imported Imported - Imported
Fabric type Outer Shell: 100% Cotton; Lining: 100% Polyester Outer Shell: 100% Cotton; Lining: 100% Polyester 100% Cotton 100% Cotton - 100% Cotton 100% Cotton 100% Cotton - 100% Cotton
Care instructions Machine Wash Machine Wash Machine Wash Machine Wash - Machine Wash - Machine Wash - Machine Wash
FTB Score
9.9
9.8
9.6
9.6
9.5
9.3
9.1
8.9
8.8
8.6
Where to Buy

Frequently Asked Questions (FAQs)

1. What can I use instead of pull-ups at night?

Instead of pull-ups at night, you can try using Goodnites® NightTime Underwear or Goodnites® Bed Mats. These products are designed to keep kids and their beds dry throughout the night, providing a reliable solution for nighttime accidents.

2. What age should you start training pants?

While in the past, pull-ups were recommended for the transition to potty training around age 2, the new generation of pull-ups, like Pampers Nappy Pants, are recommended from a younger age, starting at around 7-12 months old, depending on the baby's weight.

3. What do kids wear after potty training?

After potty training, kids can wear cloth training pants or potty training underwear, especially when starting overnight potty training or when transitioning away from pull-ups at night. These options provide a more underwear-like experience while still offering some protection against accidents.

4. What age should a child stop using pull-ups at night?

A general guideline is to wait at least six months after your toddler is fully potty trained during the day, typically between the ages of 2 and 3½, before trying to have them sleep without diapers or pull-ups at night.

5. What's the difference between training pants and pull-ups?

Training pants and pull-ups have some differences. Training pants have an elasticated waistband like pull-ups but are less absorbent. This makes them less comfortable when wet, encouraging children to avoid accidents and use the potty instead.

6. Are training pants a good idea?

Training pants can be beneficial for children during the potty training process. They provide a bridge between diapers and regular underpants, helping children make the connection and gain more independence in managing their bathroom needs.

7. What age do boys finish potty training?

Most children complete potty training by 36 months, with an average learning process of about six months. Boys usually finish potty training a few months later than girls, typically around 38-39 months.

8. Do training pants work as well as diapers?

Training pants, such as pull-up pants, serve a specific purpose during potty training. They can be pulled down like underwear, allowing children to learn independent bathroom habits. However, they are less absorbent than diapers, enabling children to feel wetness and develop an awareness of their bodily functions.

Editor's Notes

During our training underpants for baby boys research, we found 48 training underpants for baby boys products and shortlisted 10 quality products. We collected and analyzed 229,799 customer reviews through our big data system to write the training underpants for baby boys list. We found that most customers choose training underpants for baby boys with an average price of $23.30.

The training underpants for baby boys are available for purchase. We have researched hundreds of brands and picked the top brands of training underpants for baby boys, including Marvel, Paw Patrol, BIG ELEPHANT, MooMoo Baby, EZ Moms. The seller of top 1 product has received honest feedback from 384 consumers with an average rating of 4.7.

Written by

Bonnie Salem Avatar

Bonnie Salem

Bonnie Salem is a stay-at-home mother with two-year-old twins and has spent almost half of her life surrounded by baby products. As a mother and a professional copywriter, she has an insightful and unique eye for researching products suitable for infants. Bonnie Salem is an expert in health and nutrition who lives with her family in New Jersey. She has over 15 years of working experience in an institute of medicine after graduating from the University of Toronto. She is highly interested in personal health and wellness.