Swiftwick PERFORMANCE FOUR is built for durability. This Swiftwick sock will endure the needs of an active lifestyle in a medium cushion and medium compression option for everyday performance wear. A Nylon reinforced heel and toe provides maximum durability in high-abrasion areas, while lightweight Olefin fiber wicks moisture and offers remarkable strength for added longevity. Purchase includes 1 pair of Swiftwick Performance Four socks.
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