Elastic closure Innovation Fabric: Stretch fabric moves with the body . Our athletic underwear base layer provides a comfortable fit with 4-way stretch fabric. 4 cm waistband without squeezing you too tightly. Always Dry Technology: Our compression pants wick moisture and dry fast. Breathable Fabric: Our compression leggings help keep your body cool during summertime or outdoor actives. Keep your skin from harmful UV rays by more than 99% (UPF 50+) Engineering Design: A saddle that has two seams in the middle gives you a noticeable amount of extra room when you moving.