The new colors "Silk and Cotton" Linen Pile Foot Underwear, knitted with 100% linen pile on the inside and 100% tightly twisted cotton on the outside, are now available in mid-forest and bread orange! Linen is a material with excellent moisture absorption and release properties, making it perfect for summer. It is a free size with no heel, so you can wear it for a long time by switching it up and down and left and right. Linen also has moderate heat retention, so it is recommended for use not only in summer but also all year round. Please see the product page for details.