Skins Women's DNAmic Compression Booty Shorts 75% Nylon/25% Elastane Imported Powerful proprietary SKINS fabric fights muscle vibration/oscillation to maximize muscle efficiency and reduce post activity soreness Increased oxygen delivery to active muscles to create more power with less fatigue Soft microfiber waistband anchors onto hips for comfort and stability A premium, Technical "booty" short that is perfect for training and competition (2.5" inseam on size M) SKINS performance compression: it's equipment, not clothing