Bridgedale Men's WoolFusion Trekker Socks 44% Enduro Wool, 38% Nylon/Polyamide, 17% ENDUROFIL/Polypropylene, 1% LYCRA/Elastane Imported Enduro-Wool guarantees softness and quality compared to Merino Wool. Other wool yarns are spun from recycled wool and can be uncomfortable next to skin unlike Enduro-Wool. Enduro-Wool also provides excellent thermal and moisture control properties. ENDUROFIL is a thermal yarn and is combined with Enduro-Wool and Merino Wool for superb wicking and durability. ENDUROFIL is a polypropylene fibre, which also offers high abrasion and wash resistance. LYCRA ensures Bridgedale socks fit and stay fitted. LYCRA fibre helps Bridgedale socks keep their shape year after year. LYCRA fibre is knit into specific zones to further improve fit and long term comfort. Boot height and medium cushioning with extra padding on the sole for added protection. 3 Year Guarantee Extra padding under foot