Size FreeMaterial 100% organic cottonMade in Japan (Imabari) What is organic cotton... Organic cotton is cotton that has been grown on farmland without the use of pesticides or chemical fertilizers for at least three years using such agricultural methods.It is manufactured by minimizing the environmental impact of chemicals throughout the entire process, including spinning, weaving, dyeing, and sewing. This product is a knit product using 100% Supima cotton organic yarn. The inside, which is in direct contact with the baby's skin, has a soft, non-twisted yarn-like texture, while the outside is made of organic yarn.The inside, which is in direct contact with the baby's skin, is made of a special yarn that has a soft, non ply yarn texture, but is also strong, with minimal shedding. The outside and inside of the double-layered fabric are not sewn together to make it easier to dry. The natural and gentle feel of cotton protects baby's delicate skin. The breathable feel of high quality cotton is sure to make your baby feel good. These cotton socks are made by a long-established towel maker in Imabari, which is particular about raw cotton. The simple design makes these socks a great gift idea.