Our Redback boot socks are as comfortable as they are durable. Made with New Wool, recognised for its strength, the socks are bolstered further with hard wearing Cordura reinforcements in the vulnerable heel and toe areas. Lycra is added to the tight-knit, loop-pile finish to ensure a great fit and maximum comfort. Features Incorporated ventilation channels increase the overall breathability of the sock. Specially designed to work in harmony with Redback footwear. Smart, twin stripe detail in Redback red. Dimensions/Fit Please select from: Small (covering UK shoe sizes 4-7)Large (covering UK shoe sizes 8-12)Extra Large (covering UK shoe sizes 12+) Specifications Composition: 30% Wool57% Acrylic8% Nylon3% Cordura2% Lycra Elastane Pack contents - 2 Pairs of Redback Boot Socks UK delivery included in the price.