Features Merino blend hiking socks - 73% Merino Wool, 25% Nylon, 1% Elastane, 1% Polyester. WOW (wool on wool) technology - a double layer of wool in cushions the heel. Flat knit toe seam - reduces rubbing. Elasticised arch brace - for lasting shape and a secure fit. Smartwool size guide Size UK Euro Small 2 – 4.5 34 – 37 Medium 5 – 7.5 38 – 41 Large 8 – 10.5 42 – 45 X Large 11 – 13.5 46 – 49
