Injinji's five-toe patented designed specifically for runners and hikers Prevents blisters & hotspots while running Ideal use for running, walking and athletic activities Superior mositure management during runs of all lengths Natural Toe Splay The Run Lightweight No-Show are performance running socks designed to maximize your skill without sacrificing your personal comfort. Injinji running toe socks reduce friction and sweat buildup while allowing your toes to splay and align naturally for increased comfort, balance, and performance. Injinji's toe socks for running fit inside any shoe for any running style, whether you're an ultra runner, marathon runner, occasional jogger, or even prefer to walk. Additionally Injinji running socks prevent blisters and hotspots from occuring on all your runs and walks. Constructed with CoolMax, these socks are ideal for running in all weather conditions with it's mositure-wicking ability. The no-show length is perfect for all runners and running shoes with an additional heel tab to further protect your feet on runs. Sizing? No problem. This Injinji sock is unisex perfect for both female and male runners. Please refer to the sizing to find the correct pair of Injinji socks for you!