Performance Core knit fabric: Our signature fabric smooths, lifts and supports whether you're working out or hanging out. Stretch level: Maximum 4-way stretch so you can move without restrictions. Breathable to keep you cool. Moisture wicking keeps you dry. Abrasion resistant. Maximum coverage and never see-through. Smoothing tech delivers medium compression. 83% nylon, 17% spandex. Machine wash cold. Tumble dry low.