Those heavy duty cotton socks are using the thick cotton thread, make a steady piece with natural cotton hand feel, easy to wear for the whole seasons. Fully terry on the bottom part of the socks, feels like walking on the soft cloud, chunky rib give the strong textured look and stretchy feel. FABRIC DETAIL: - 87%cotton, 11%polyester, 2%spandex SIZE: - 7 - 12T MANUFACTURER: - made in Jiangsu China WASH AND CARE FOR COTTON: - Cotton can be machine or handwashed. To prevent garments from shrinking and to keep them looking their best, wash at 30°. - Place delicate items in a mesh bag to help prevent snagging or twisting during machine cycles. - Pre ‑treat stains before washing by dabbing a small amount of stain remover on the area. For darker pieces, patch test on an inside seam to check the colour won’t be affected. - Hang cotton out to dry, as heat from tumble dryers can cause it to shrink. This also saves energy.