These socks look good on or off the bike. Made with 75% Ultra-wicking Micro Denier Acrylic, 15% Nylon, and 10% Spandex for exceptional comfort and strength. All Sock Guy socks feature their "Stretch-to-Fit" sizing system and their exclusive "Easy-fit" cuff for a PERFECT FIT every time on any foot. These features create superior softness and comfort and help eliminate blisters and hot spots. They also feature a double stitched heel & toe for added strength and durability. They deliver Superior Quality and High-Tech Comfort in every SockGuy sock they make. Small/Medium fits a Women"s Shoe Size 6-10 and Men"s Shoe Size 5-9.