90% cotton 10% elastane boxer will be sent in your shopping. bamboo socks are completely domestic production and produced from 100% bamboo yarn. at the same time, it prevents fungus formation with its natural anti-allergic feature. it is very light, gives a feeling of coolness, absorbs and transfers the sweat formed in the body instantly. it has the closest softness to the cashmere and silk touch. it refracts ultra-violet lights. reinforced heel and seamless reinforced toe to reduce wear. non-tightening tire. Improved version for clearer understanding and better search visibility. Suitable for users seeking detailed and reliable product information.