Thank you for viewing. This is a special order sleeveless shirt from MOUNTAIN MARTIAL ARTS and BLACK BRICK, size M. The size feels like a standard M size. Mountain Martial Arts Black Brick model: MMA Racing Gotouch Sleeveless BLBR size: M material: Body] Polyester (POLARTEC) 100% Separate fabric] Polyester 100% I bought it for trail running, but I haven't had many opportunities to use it, so I'm selling it to declutter. It has a very stylish and rare design, feels great on the skin, and is also quick-drying, so I think it will be useful not only for trail running but also for hiking, jogging, and road marathons. Please consider this, understanding that this is a private sale, it is new but has been handled by people, it will be simply packaged, and it may be removed from sale suddenly as it is also listed on other sites. BLACK BRICK's original T-shirts can be worn on their own, both in the mountains and in the city. Design and color variations that eliminate the "outdoor" and "sports" wear feel. And, reliable functionality and practicality. "Unique" "This is what I wanted" We hope you will incorporate such a perspective into your mountain climbing and everyday fashion. We also sell trail running and trail running products such as Patagonia, Northface, Salomon, altra, HungerKnock, TOPO ATHLETIC, MountainMartialArts, Eldoreso, answer4, Paagoworks, Teton Bros., and Ultimate Direction, so please check them out.