Best Thermal Underwear for Men of 2025

The Amazon Essentials Thermal Set is designed to keep you warm and comfortable during cold weather. Its slim fit design hugs your body through the shoulders, chest, and waist, while the tapered leg openings provide a sleek look. Made from a breathable waffle knit fabric, this thermal underwear allows for great airflow, ensuring you stay cozy without overheating. Lightweight yet warm, this set is perfect for layering without the bulk. Enjoy all-day comfort with features like a classic crew neckline and elastic waist on the leggings for a snug fit.

Thermajohn Thermal Underwear is designed to keep you warm and comfortable during cold weather. With its exceptional heat retention, you can stay protected from the chill. The ultra-soft fleece lining ensures that you feel cozy all day long, making it perfect for both outdoor activities and lounging at home. Additionally, the moisture-wicking fabric keeps you dry by effectively pulling sweat away from your skin. Plus, the 4-way stretch material allows for easy movement without any discomfort, so you can enjoy your day without worrying about chafing or bunching.

The TELALEO Thermal Underwear Set is designed to keep you warm and comfortable during cold weather. With superior heat retention from its fleece-lined fabric, you'll enjoy cozy warmth whether you're outdoors or relaxing at home. The moisture-wicking technology helps keep you dry by pulling sweat away from your skin, making it perfect for active days. Its snug fit ensures no uncomfortable bunching, while the four-way stretch material allows for easy movement, giving you the freedom to enjoy any activity without restriction.

Stay warm and comfortable in the Place and Street Thermal Underwear Set. This set includes a men's thermal shirt and thermal pant, both made from a durable blend of 60% cotton and 40% ultra-soft polyester. Designed for endurance and performance, these heavyweight thermal sets feature advanced thermoregulation technology to keep you comfortable in any environment. The premium RetentionX waffle-knit fabric with cotton and stretch yarns ensures a perfect fit and multi-wick technology keeps you warm and dry. The breathable waffle-knit thermal construction also helps to keep you odor-free. With its functional fly, this thermal set offers convenience and functionality. Perfect for braving the harshest conditions, the Place and Street Thermal Underwear Set is a must-have for any outdoor enthusiast.

The Fruit of the Loom Men's Recycled Waffle Thermal Underwear Crew Top is a comfortable and eco-friendly thermal shirt made with a soft mini waffle fabric, U.S. sourced cotton, and recycled polyester. It is designed to wick away moisture to keep you comfortable and retain heat to keep you warm, making it perfect for cold weather. The tagless label adds to the shirt's comfort. Please note that this product includes the top only.

The UNIQUEBELLA Thermal Underwear offers excellent warmth and comfort for active winter days. With its high-quality fleece lining, you’ll stay cozy whether you’re jogging, cycling, or walking your dog. The breathable fabric effectively wicks away moisture, keeping you dry and odor-free during your workouts. Additionally, the stretchable material provides a snug fit that allows for unrestricted movement, helping to prevent muscle strain. Its flatlock stitching ensures a smooth finish to eliminate chafing, making this thermal set a reliable choice for any outdoor activity.

The Indera Traditional Long Johns Thermal Underwear for Men is made of cozy waffle-knit fabric that traps and retains body heat within the waffle pockets for reliable heat retention. The cotton-poly construction is comfortable and enhanced with polyester for added stability and utility. The ribbed cuffs keep the cold out, and the front fly enhances functionality. These long johns combat cold conditions during medium-level activities like hiking, camping, and lounging. They are available in versatile sizing up to 6X.

Experience warmth and comfort with the TELALEO Thermal Compression Pants. The ultra-soft micro fleece lining provides excellent insulation against cold weather, ensuring you stay cozy during outdoor activities. Designed with stretchy and durable materials, these pants fit like a second skin, allowing for unrestricted movement. The moisture-wicking fabric keeps you dry by quickly absorbing sweat, making them perfect for both workouts and casual wear. Whether you're running, cycling, or skiing, these versatile leggings are made to enhance your performance while keeping odors at bay.

The HEROBIKER Thermal Set is designed to keep you warm and comfortable during cold weather activities. Made with a soft lining, it offers excellent warmth without bulk, making it perfect for layering under your clothes. The breathable fabric ensures you stay dry while enjoying outdoor sports like skiing or snowboarding. With its four-way stretch, this thermal underwear allows for full freedom of movement, so you can stay active without feeling restricted. The flatlock stitching adds to your comfort by preventing chafing, ensuring you can focus on your performance rather than your clothing.

The ALPIDEX Thermal Underwear is designed for versatility, keeping you warm during winter sports, dog walks, or holiday outings. Its comfortable design features flat seams, allowing you to move freely, whether you're wearing jeans or sweaters. Made from durable materials, this underwear is easy to clean and dries quickly, ensuring it stays in great shape after multiple washes. Additionally, its breathable fabric promotes air circulation, preventing overheating or chilling, so you can stay comfortable in varying temperatures.