The SockGuy Primal Cycling Sock has all the features you need, such as eliminating blisters and hot spots, so you can stay longer in the saddle. Superior softness and comfort that helps eliminate blisters and hot spots Mesh upper for supreme air flow Double-stitched heel and toe for strength and durability Made with : Micro-Denier Acrylic Style : Flat-knit; Standard Cuff Height: 3