10 Best Womens Thermal Underwear 2025 in the United States

The Cuddl Duds Women’s Thermal Underwear 2-piece set is designed for cold weather with a cozy brushed fleece inside and a soft matte outside, offering a heavyweight feel for warmth without bulk. It’s made from a polyester and spandex blend, which provides good stretch and comfort for active use. The moisture-wicking fabric helps keep sweat away, which is great for staying dry during physical activities or layering.

The set also offers 50+ UV protection, an extra feature not common in thermal underwear, along with thoughtful details like thumbholes and a tag-free label for added comfort. Fit-wise, it leans toward a sleek, modern silhouette that can be worn as a base layer or on its own, making it versatile. The heavyweight fabric means it’s best suited for very cold conditions, so it might feel too warm for milder weather or indoor use.

This set is a solid choice if you want a warm, stretchy thermal layer that performs well in cold climates and offers added sun protection.

The Cuddl Duds Women's Thermal Underwear Set is designed for those seeking cozy, cold-weather clothing. One of its standout features is the heavyweight fabric, which includes a brushed fleece inside that keeps you warm while the moisture-wicking material effectively manages sweat, making it suitable for various activities in winter. The spandex stretch ensures a comfortable fit, allowing for easy movement whether you’re lounging at home or out and about.

The set also boasts a protective quality with 50+ UV protection, which is a valuable addition for outdoor enthusiasts. The thumbhole sleeves and modern rise leggings contribute to a snug fit that prevents cold drafts, enhancing warmth and comfort.

While the heavyweight fabric is warm, it may feel too bulky for some users who prefer lighter layers. Additionally, the snug fit may not cater to everyone’s preference, as those who like looser clothing might find it restrictive. Durability is another aspect worth considering; although made from a blend of polyester and spandex, the longevity of the fabric under regular use remains to be seen.

Lastly, care is simplified with machine washability, making it easy to maintain. If you’re after a stylish, functional thermal underwear as a base layer or standalone piece for winter outings or indoor relaxation, the Cuddl Duds set could be a fitting choice. However, if you lean towards lightweight layers, it’s worth exploring other options.

The Cuddl Duds Thermal Underwear for Women is designed to keep you warm and comfortable during cold weather with its fleece-lined interior and soft matte exterior. Made from 93% polyester and 7% spandex, it offers a good balance of warmth and stretch, making it comfortable for active wear or lounging. The moisture-wicking fabric helps manage sweat by absorbing and evaporating moisture, which is important for staying dry and comfortable when layering. The fit is enhanced by spandex stretch, allowing freedom of movement without feeling tight or restrictive.

Breathability is addressed reasonably well due to the fabric blend, but as a heavyweight fleece-lined set, it might feel a bit warm for milder conditions. A nice bonus is the fabric’s built-in 50+ UV protection, which can be useful for outdoor activities. The leggings feature a modern rise and thumbhole sleeves add extra coverage and keep sleeves in place.

The material is durable for regular use and machine washable, though the polyester base may not be as breathable or odor-resistant as natural fibers like wool. This set functions well as a base layer for winter outdoor activities or cozy indoor wear, especially if you want warmth without bulk and appreciate a stretchy fit. If you prefer natural fibers or need top-tier odor control, other options might be more suitable.