For serious runners who like to explore the world's trails at a faster pace. The trail run ultralight merino ankle sport sock has t2 targeted micro cushioning combined with extra ventilation for the perfect balance of protection and comfort on the toughest terrain._Merino sport fusion technology providesresilient padding, moisture wicking, odour control and outstanding durabilityon the trails. _The sport fit gives supportivecompression for stability and balance around the ankle and mid foot and thezero debris cuff gives an extended close fit to prevent debris getting in andthis means your sock won't slip down or bunch in your footwear._The natural toe box is wide andunrestrictive, allowing your toes to splay when running and the reinforced seamprevents splits and blow outs when descending. _These socks are made from 64% nylon /polyamide, 33% merino wool, 3% Lycra / elastane and come in 3 differentcolours: black, blue & gunmetal. They come in 3 sizes: medium (6-8.5 UK),large (9-11.5 UK), x-large (12+ UK) and are machine washable._Extra product details:Bridgedale men's sport socksMerino wool fibresOverfoot ventilationFlat toe seamsGreat for running¾ ankle lengthMoisture wicking3 colour optionsComfy toe guardAdvanced padding systemNatural toe spreadAntishock cushioning3 sizes available_