This is the XS Scuba 2mm Low Neoprene Sock Bootie Features: Foot protection from fin wear Extended heel for fin strap protection Rubberized textured bottoms Soft nylon lining Glued and blind stitched Socks have a soft nylon lining for comfort and a rubberized textured sole for positive grip. Neoprene socks have an extended heel for fin strap protection. The socks edges are sewn for added strength and durability. The XS Scuba 2mm Neoprene Socks come in a black color, are available in multiple sizes. "