Features: One size fits all. Anti-skid frictions on the bottom for safe practice. Elastic cuff holds sock comfortably in place. Thicken bottom with high density combed cotton, soft, great cushioning and comfortable to wear. Moisture absorbing fabric, good ventilation and dry out quickly. Excellent workmanship, smooth textile lining for all-day comfort. Arch support help to reduce foot fatigue. Perfect for Yoga, Pilates, barre, ballet, football , basketball hockey , etc.