This is a women's item. It's a training jacket, not a swimsuit. I'm selling it because the size doesn't fit me, even though I bought it new. For reference... I am 168cm tall and have a BMI of 20. I can wear it, but it's quite tight. I think it would fit someone around 160cm tall. Those who like a snug fit might be able to wear it even with my build. It's breathable and has three pockets. The center zipper can be opened from the bottom, making it easy to adjust your body temperature. I think it's a great item for running and workouts at the gym. Below is the product description. ■Brand SPEED/Goldwin ■Product Number SD27F60 ■Size: L (Height: 162cm-168cm) ■Description Speedo Workout's iconic model, the Speedo Jacket. It follows the design of the Fastskin LZR Racer X and uses the high-stretch material of Fastskin LZR Racer Elite 2. The high-stretch material stretches in accordance with the movement of the entire body during workouts, making it less likely to feel stress from the fabric's stretching limit, and supporting a comfortable workout. ■Material LZR Pulse+ (65% nylon, 35% polyurethane)