Fox 8" Flexair Merino Socks Wool does not always necessarily mean warmth. The Fox 8" Flexair Merino Socks are lightweight, breathable and comfortable socks made with a Merino wool blend. Fox designed these socks to be ultra-breathable and comfortable with mesh zones to provide airflow and compression arch support makes for a comfortable fit. A rib knit upper ensures to the socks won't slip down and a flat-stitched toe improves comfort on long rides. Features Made with merino wool Mesh upper Compression arch support Rib knit cuff Flat-stitched toe SPECIFICATIONSMaterial59% merino wool, 26% polyamide nylon, 11% polyester, 4% elastane Sock Length8"Intended Use Trail Sizing Size Small/ Medium Large/Extra Large Mens US Shoe Size9-1111-13Mens EU Shoe Size39-4243-45Mens UK Shoe Size5-77-9. 5 | Fox Apparel | 8" Flexair Merino Sock Men's | Size Small/medium In Fluorescent Red | Elastane/nylon/polyester