Trakker Merino Socks are made with a merino wool blend that provides warmth and durability, with an in-turned welt for a relaxed and comfortable fit. A ventilation channel increases breathability, while the reinforced toe and heel in Cordura adds strength where it is needed most. A fine recessed toe seam reduces the risk of abrasion, and washing the socks inside out is recommended for best results. - 40% Merino Wool - 40% Acrylic - 15% Polyamide - 3% Cordura Polyamide - 2% Lycra Elastane