I purchased this from Amazon about 10 years ago. I tried it on once with inner pants, but it was quite small for me, who is 171cm tall and weighs 60kg, and it has been sitting in my dresser ever since. It's labeled as size S, but I think it would be better suited for someone who is slender and around 160cm tall. The material in the crotch area seems to be COOLMAX. No claims, no returns, no cancellations. - Size: S - Brand: jaggad - Color: Black Thank you for looking.