Highly ventilated socks made with two different natural materials. With special technology input, the cotton is knitted facing inside in order to give the gentle texture to the feet. Also making the outside fabric to be linen to be more breathable, dry quickly and highly heat conducted. The socks are constructed from the cotton inside to absorb sweats and odours, with linen helping to release. 45% linen 36% cotton 16% polyester 3% polyurethane. Made in Japan.