This is a set of 3 safety vests. The size is free size. These are mesh vests with reflective material. How about these for safety vests, reflective vests, fluorescent vests, night runs, nighttime work, walking, etc.? Although they are new and unused, there may be stains such as color transfer due to being stored at home. Functionally, I think there are no problems. Please refrain from purchasing if you are concerned about minor imperfections. (The T-shirt in the photo is not included.)