1000 Mile Men's Trainer Liner Sock Double Layer: Introducing the 1000 Mile Tactel Trainer Sock, a discreet double-layer sock in a shorter style. Its Tactel inner layer protects against friction and wicks away moisture for a cool and dry foot. The combination of fibers and top venting maintains a comfortable temperature, while arch bracing provides extra support. Our unique BLISTER-FREE GUARANTEE ensures reduced friction, less wear, and blister prevention. Shaped to match trainer shoes, it features a higher tab to protect the ankle and Heel Power technology to prevent slipping. Tactel is a soft, lightweight, and fast-drying fiber, keeping your feet cool during activity. Choose the same size as your foot, opting for a smaller size if you have a narrow fit. Available men's sizes: M (6-8.5 UK/EUR 39-42.5), L (9-11.1 UK/EUR 43-46.5), XL (12-14 UK/EUR 47-49). Materials: Outer layer(65% cotton, 34% nylon, 1% Elastane Lycra); Inner layer (100% Tactel). Experience superior comfort and protection with our expertly crafted socks. Extra Product Details: Double layer construction for protection and moisture-wickingComfortable temperature with top venting and arch bracingBlister-free guarantee with reduced friction and wearShaped to fit trainer-style shoes with ankle protectionHeel Power technology prevents sock slippingTactel fiber is soft, breathable, and lightweight 1000 Mile Men's Ultimate Tactel Trainer Liner Socks - 1 Pack Double Layer Socks in Black Size: 6-8.5