The Endurance is Wrightsock's newest and softest Medium Cushioned Double Layer performance sock designed by runners who demand a  and cushioned ride. Strategic cushioning hidden between the inner and outer layers eliminates bulkiness!

Fiber Content
Inner Layer: 70% Recycled Polyester, 26% Nylon, 4% Lycra®
Outer Layer: 68% Recycled Polyester, 24% Nylon, 8% Lycra®