Size: M Color: Black Material: 95% Cotton, 5% Polyurethane Retail Price: Long Sleeve ¥4,950 (tax included) Tights ¥4,950 (tax included) Description: The thermal fabric used in military underwear traps warm air in the waffle-like recesses, creating an insulating layer. While retaining body heat, it also wicks away excess moisture, providing comfortable warmth. The uneven texture, with minimal skin contact, feels gentle and is highly elastic, fitting the body moderately. Perfect as underwear for winter fishing trips, or as an inner layer for layered styles. The tightly knit crew neck and ribbed cuffs prevent warmth from escaping. The hem is not folded over, so it's not bulky and easy to tuck in. * Hand washing is recommended. Please be aware that using a washing machine or dryer may cause shrinkage. Washed once before use, and once after use. I am selling this because the size doesn't fit me. Please check the size on the website. Also, it has been used once, so please consider this only if you understand. Thank you.