Featuring 3 new pairs of socks, each gift box supports Water.org which works to improve lives through clean water and sanitation. This collection has one blue, one grey and one light grey sock. Comes in size USA Men's 8-13, USA Women’s 9-14 (Medium). The socks are made of 75% Organic Cotton, 23% Polyamide, 2% Spandex and have a seamless toe. Machine wash warm and dry on low heat.