Best Plus Size Thermal Underwear Sets for Women of 2025

Stay cozy and warm with IN'VOLAND Women’s Plus Size Thermal Long Johns Sets. This curvy long johns set features thermal leggings and a long sleeve crewneck top with light fleece lining to retain body heat. The low neckline design and comfortable cuffs make it perfectly hidden underneath your outer layers while the precision length adds style. Ideal for daily wear and outdoor sports, it's also suitable for builders working in cold. Plus size available with a size chart and refund policy.

The Patelai Thermal Underwear offers a complete package with two sets of plus size thermal wear, ensuring you stay warm during cold weather. Made from a soft and breathable blend of polyester and spandex, this set provides exceptional comfort and flexibility. The innovative 4-way elasticity guarantees a snug fit that retains its shape, allowing you to move freely whether you’re exercising or relaxing. Additionally, the sweat-wicking capability keeps you dry and comfortable, drawing moisture away from your skin while maintaining warmth. Perfect for various activities, this thermal set is a reliable choice for outdoor adventures or everyday wear.

The Ekouaer Thermal Underwear Set is designed for comfort and flexibility, featuring a classic round neck and soft, lightweight material. This plus-size set is highly elastic, allowing you to move freely while keeping warm. Made from skin-friendly fabric, it helps retain your body heat, providing a cozy feeling during cold winter days. Ideal for both lounging at home and outdoor activities like skiing or hiking, this versatile set ensures you stay comfortable no matter where you are. Remember to check the size chart before ordering for the best fit.

The SWOMOG Thermal Underwear Set is designed to keep you warm and comfortable during cold weather. Made with a soft fleece lining, this set ensures you feel cozy without being weighed down. Its stretchy fabric allows for a snug fit while maintaining shape, so you can wear it confidently. The set includes a long sleeve top and full-length pants, providing versatility for both lounging at home and outdoor activities. Whether you're hiking or simply relaxing, this base layer is essential for staying warm and protected from the chill.

The Real Essentials Women's Plus Size Thermal Underwear Set includes 2 fleece lined long sleeve tops and 2 fleece lined long john bottoms, great for winter outdoor sports like skiing, hiking, camping, and snowboarding. The slim body fit and 360-degree draping technology give a seamless look under clothing. The four-way stretch and elastic waistband offer comfort without leaving marks, and the suit can be washed repeatedly without shrinking.

MOSCOAL Thermal Underwear Set offers exceptional warmth with its ultra-soft microfiber fabric, perfect for chilly days. The V-neck design ensures you look stylish while feeling comfortable, allowing for easy layering in winter outfits. This set includes both a thermal top and leggings, giving you the flexibility to wear them together or separately based on your needs. Available in multiple plus sizes, the stretchy material adapts to your movements, providing a snug yet non-restrictive fit that keeps you cozy without feeling bulky.

The COOTRY Thermal Underwear Set is designed to keep you warm and comfortable during the chilly winter months. Made from a soft polyester and spandex blend, the fleece lining provides cozy warmth without feeling bulky. This set includes a long-sleeve top and full-length pants, perfect for layering during outdoor activities or simply lounging at home. With a four-way stretch, it offers a snug fit that retains its shape, ensuring comfort throughout your day. Whether you’re hiking, skiing, or just enjoying a cold day indoors, this thermal underwear set is your ideal companion.

The HGps8w Thermal Set is designed to keep you warm and comfortable during cold weather. With excellent customer service, you can reach out for support anytime, and they promise a solution within 24 hours. This set includes a variety of styles, from cozy pajamas to matching family sets, perfect for holiday gatherings. The soft materials ensure that you feel relaxed whether lounging at home or sleeping. Plus, the versatile designs make it easy to mix and match with other loungewear, giving you options for any occasion.

The HOdo Thermal Underwear Set is designed to keep you warm and comfortable in cold weather. With its fleece lining, it effectively retains heat, ensuring you stay cozy throughout the day. The fabric boasts a four-way stretch, allowing you to move freely without feeling restricted. Its scoop neck design and snug cuffs ensure that the set can be worn discreetly under your clothing while still looking stylish. Plus, the thoughtful cut prevents any bunching at the waist and sleeves, so you can enjoy your activities without any skin irritation.

This women's thermal underwear set is made of ultra-soft polyester and spandex with a fleece lining, providing warmth and coziness in freezing cold weather. It features moisture-wicking technology to keep you dry and insulation to protect you from extreme cold. The snug-fitting design won't make you feel heavy or binding, and the 4-way stretch material offers flexibility and full mobility. This set is perfect for outdoor activities or as loungewear, making it a great gift for Thanksgiving or Christmas.