I bought this at a sporting goods store. It's an Adidas tracksuit. It's nylon, navy blue with three white stripes. It's a set of three pieces: a blouson, half pants, and full-length pants. The size is men's S. I think it would be good for women who are tall or who want to wear it loosely. There is some slight pilling, but there are no stains or tears, and I think it can still be worn. How about it for going to the gym or for walking?