Swiftwick Aspire 4 inch Color:Black It features a vibrant upper

It features a vibrant upper pattern

Enables more natural motion

Delivering a high-strength dose of vitamin C (1000 mg)

blisters and painfully raw skin

Swiftwick Aspire 4 inch Color:Black It features a vibrant upperThe ASPIRE Line is thin and light for serious runners and cyclists, yet still perfect for athletes of any sport. Our Managed Compression prevents bunching and hot spots by supporting all 3 arches in the foot. Our Linked Toe technology prevents blisters by eliminating bunching in the toe box. Our socks are knitted at 200 needles, the highest youll find in socks. The higher the needle, the tighter the knit. This high gauge construction produces a