B1000 Mile Low Profile Sport Sock ReviewbP PP 1000 Mile Low Profile Sport Sock PTactelPDouble Layer Sock. Padded achilles tendon protectionPArch bracing for additional support and custom fit available in both men and womens sizing.PTop venting for superior breathabilityPTactel inner layer wicks away perspiration to keep feet dry and coolPCONTENT: Outer layer: 76 Cotton, 22 Nylon & 2 Lycra.