Fraise's classic crew features compression arch support and a proprietary non-slip grip design that's made to stick. Our organic cotton blend incorporates silver ions, which provide natural antimicrobial properties that help reduce odors and bacterial growth. It's also been combed with brushes to remove the shorter, weaker fibers, leaving it softer and more durable than traditional cotton. Each pair features a label detail on the outer ankle. Composition: 75% combed organic cotton, 20% recycled polyester, 5% spandex Our organic cotton is grown without synthetic chemicals and uses less water than conventional cotton. Recycled polyester reduces waste and carbon emissions by approximately 30% compared to virgin polyester. Care instructions: To preserve the grip, turn socks inside out and wash on a cold, gentle cycle. Air dry to finish. Avoid using bleach or fabric softeners. Uses: pilates, barre, yoga, non-slip socks Imported Fits US women's shoe size 5-10 or men's size 4-9