Blister GuardŽ protection in military physical training socks Blister GuardŽ technology using Friction Free nylon to reduce friction against the skin Ultra white acrylic for moisture management and cushion Turn welt top with LycraŽ rib leg construction for stay up comfort Cushioned sole and toe areas for all day comfort Friction Free nylon in heel and toe areas to reduce friction that will significantly reduce blisters, hot spots and abrasions. LycraŽ arch panel for support and snug fit. Quarter crew Medium weight Contents: 67% acrylic, 20% Friction Free nylon, 12% nylon, 1% LycraŽ spandex |