Best Women's Thermal Underwear Sets

Trusted Brand

A classic design, this set provides warmth and comfort when you need it, and it earns our fitness expert's praise.

Made from a blend of polyester and cotton, this thermal set is comfortable and keeps the heat in during the winter months. Great for wearing as a sleep set or underneath winter clothes, this set is machine-washable when you’re ready to refresh it and is made with a tag-free label for an itch-free wear.

Women's Waffle Pajama Set

Other shoppers commented that this thermal set runs a little small in size. If you don’t want these to be too tight, order a size up.

Best Bang for the Buck

Amazon Essentials

Casual Pick

Our fitness expert recommends the Amazon Basic thermal wear set for its waffle-knit textures and breathable feel.

Waffle-knit texture offers a snug and cozy feel, so it can double as pajamas or a base layer. Crafted out of a polyester and cotton blend. Retains body heat during chillier temperatures. A more lightweight option for those who don't enjoy bulkier winter clothing.

Long Johns Thermal Underwear

Not as flexible as some other brands, so users should make sure they order the right size.

Thermajane

Customer Favorite

Available in a variety of small and plus sizes, this fleece-lined base layer set is appreciated both among customers and our fitness expert.

Specialized to prevent heat from escaping, keeping you at the same temperature throughout the day. Spandex materials prevent the fabric from snagging or losing shape. Thin yet effective, making it an excellent base layer under most winter outfits. Available in a variety of colors and sizes.

Some complaints about the pants pilling easily.

American Trends

Thermal Underwear Set

Best for Outdoor Use

The specialized moisture-wicking fabric of this thermal underwear set will keep you warm and dry during a variety of activities.

Heavy-duty option for those searching to perform outdoor sports or chores. Delivers full coverage of the torso and arms thanks to the crew neck design. Double seams ensure that threads don't run loose and the fabric remains smooth against your skin. Offered in multiple sizes and colors.

Legs are shorter than some users had expected.

9M Clothing Company

Thermal Base Layer Set

Most Versatile

From high-speed skiing to lounging indoors, this fleece-lined set serves as a cozy base-layer set.

Microfleece material maximizes insulation to keep body heat. Stick to the skin, making them seamless underneath your regular clothes. Moisture-wicking fabric prevents unpleasant sensations from snow or sweat. Flexible, breathable, and silky.