This wetsuit is made of stretchy material for easy movement and features knee pads. It is brand new and unused. I participate in sailing competitions, but I'm selling it because it's the wrong size for me. ~I think it would be a good size for junior high school students or those in the early years of high school. I'm not a professional, but I'll provide the size measurements. Even if you're slightly larger than these measurements, you should still be able to wear it since it's a wetsuit. In my experience, it will definitely stretch by 10-20 centimeters. It's best to have it fit snugly to keep out the cold. Length: 50 cm (from neck to crotch) Body Length: 55 cm (also from crotch) Width: 29 cm Chest: 58 cm Regarding shoulder width, please refer to the width measurement as it's a sleeveless design. Inseam: 58 cm Waist: 58 cm Thigh Width: 17 cm Hem Width: 7 cm Please feel free to ask any questions you may have.