Zando Men's Casual Anti Slip Boat Shoe Liner No Show Low Cut Silicon Heel Grip Loafer Socks Cotton Socks MATERIAL & SIZE: Combed cotton in good quality, good for moisture control, keeps your feet cool and comfortable. Suitable for sock size 10"-12" FASHION DESIGN: Anti-slip design for this item, great fit, keep your feet breathable and comfortable. Good matching for all your sneakers, boat shoes, loafers, etc, anti-friction silicon heel-grip to minimize slipping and stay still on your feet NO SHOW SOCKS WITH GEL TABS: Unique anti-slip resistant design with large silicone grip on heel to prevent your slipping off while you're having fun, invisible design for wearing boat shoes, sneakers and loafers BEST GIFTS FOR FRIENDS: Perfect fits most people, good for indoor & outdoor activity, light eeight, basic and simple design. Suitable as gifts for most peolple in your life ABOUT ZANDO: Zando is an American registered brand, all products are sold exclusively by USA 1st Store authorized retailers, all products are 100% brand new and in high quality