This is a US size S, but it's equivalent to Asian sizes M-L. From climbing brand Asana, it's a sturdy construction, very light, and extremely comfortable. Leg raises are smooth. Made of 100% BOREAL polyester, so it can also be used as swimwear. I'm also selling Gramicci, The North Face, Wild Things, and Mount Rainier half pants, so please take a look. I'll offer a discount for combined purchases. How about it for bouldering, cycling, or running? Also recommended for those who like Patagonia and ROKX.