This is from a Montbell shop in a Korean department store. 100% polyester. The size is M (95), but it's recommended for those who usually wear a size S. Waist (laid flat): 34cm Recommended for those who want to be particular about their innerwear during the sweaty season. Excellent quick-drying and breathability. Set of 2 (colors: black and navy) New, but without tags. New condition. A set of 3 (gray, navy, and black) is 3500 yen. If you want the set of 3, please comment.