Thin weight ankle length sock for a multitude of activities where minimal insulation and maximum breathability are required totally waterproof breathable and windproof merino wool lining for moisture control comfort elasticated ankle insteps offer support and a comfortable fitmaterial composition outer shell 87 nylon 13 elastane membrane hydrophilic membrane inner lining 51 merino wool 30 polyester 15 acrylic 3 elastodiene 1 elastane