Crafted in Thought's much-loved and incredibly soft bamboo, organic cotton and recycled polyester blend, these sustainable socks are breathable, naturally anti-bacterial and anti-fungal, so your feet (and the planet) stay happy and healthy.  Using GOTS (Global Organic Textile Standard) organic cotton means that it’s grown without harmful insecticides and pesticides. It also guarantees that this socks are created in factories that pay living wages, and treat the workers with respect at all times.  One size- UK4-7 Fabric: 78% ORGANIC COTTON 19% RECYCLED NYLON 3% ELASTANE