This is from a Montbell shop in a Korean department store. 100% polyester. The size is L (100), but it's recommended for those who usually wear a size M. Waist (laid flat) is 36cm. Recommended for those who want to pay attention to their innerwear, especially during the sweaty season. Excellent quick-drying and breathability. Set of 2 (colors: black and navy) New, but without tags. New, no tags.