NikeGrip Studio Women's Toeless Footie Socks - Black An open-toe, open-heel design makes the NikeGrip Studio Footie Socks essential for yoga classes, Pilates, barre and any workout where it's no shoes allowed. Strategic Stability NikeGrip technology features anti-slip yarns that provide excellent traction underfoot. The footie places NikeGrip at the ball of your foot to help stabilise your step on studio surfaces. Grippy Design The open-toe design wraps around your big toe and anchors the sock in place. The open heel allows your skin to help with floor grip. Stretchy Comfort A nylon collar surrounds the foot opening for a soft feel with a hint of stretch. A knit-in tab at the back functions like a strap, securing the fit around your ankle.