Swiftwick Maxus Zero Tab Sock MAXUS™ Zero Tab is designed for comfort with a micro tab that prevents contact with the back of the shoe for maximum protection from blisters. MAXUS™ delivers compression performance benefits you can feel in a relaxed comfortable fit. The plush footbed is constructed using high-performance fibers made from post consumer water bottles. It features a thin, lightweight upper to increase breathability and keep feet cool. Product Features Arch Band Support: Maintains shape, secures the sock in place, and gently supports the arch. Thin Breathable Upper: Features a lightweight open knit pattern to enhance breathability. Seamless Toe Box: Ensures a friction-free experience around your toes for a comfortable fit. Micro Tab: Guards against contact with the back of your shoe to shield your heel. Y-shaped Heel: Offers a snug fit that flexes with your foot, avoiding any bunching or slipping. Plush Footbed: Crafted with high-performance fiber derived from recycled consumer water bottles. 52% Recycled Polyester | 44% Nylon | 4% Spandex Machine Wash Cold | Tumble Dry Low