SUSTAINABILITY Grech & Co. children's socks and tights are made in a Global Organic Textile Standard (GOTS) certified factory with certified organic materials AND meet OEKE-TEX standard 100 class 1. GOTS ensures an environmentally and socially conscious approach is taken throughout the creation of our socks and tights from start to finish. From the amount of natural fertilisers and amount of water used to grow the cotton, to ethical working standards at the manufacturing level. You can be sure only the really good stuff was used to keep your children's feet safe, cozy and cute all year long! MATERIAL： GOTS certified organic cotton DETAILS - Ribbed Style - Super soft and comfortable - perfect to withstand daily wear. - Seamless Toe - Durable Heel - Designed to avoid slouch during wear - Designed in Europe CLEAN & CARE Wash inside out in 40 degree temperature. We recommend you allow to air dry; avoid machine dryer. Do not iron.