COLD-WEATHER READY: Stay cozy in the cold with a brushed fleece inside and matte soft outside. Our heavyweight 2-piece thermal set has moisture-wicking fabric that helps absorb and evaporate moisture. SPANDEX STRETCH: This womens top and bottom set features a spandex stretch for on-the-go comfort. The densely knit fabric will help shield you from harmful UV rays for an extra layer of protection. HEAD-TO-TOE PROTECTION: Our thermal underwear has 50+ protection from harmful UV rays. With a thumbhole sleeve top, modern rise leggings, and tag-free label, look and feel great all day and night. COMPLETE COMFORT: Keep warm without the bulk with our stylish thermal underwear sets. The sleek design makes it versatile enough to wear as a base layer or on its own while you’re out on the go or lounging at home. Live in Layers: For 50+ years, Cuddl Duds has provided comfy thermal underwear. Our innovative technology helps you stay warm and look good doing it — because layering is a lifestyle.