I bought this a year ago and used it for mountain climbing. I think I've worn it about 20 times. Product number: #1114390 Product Information This jacket uses a fabric with excellent stretch, knitted in a two-layer structure, and has a firm thickness and an air layer. It combines high breathability and moderate heat retention, preventing body temperature from dropping and making it less likely to get chilled from sweat. It's great for trekking, walking, and various other activities. Specifications Material: WICKRON® ZEO [Polyester] Average weight: 396g Colors: Black (BK), Navy (BKNV), Gray (HGY) Sizes: S, M, L, XL Features: 3 zippered pockets (1 on the left chest, 2 at the waist) / Zipper doesn't touch the chin / UV cut