I used some of the leftover pieces from my denim patchworking to make this string bikini. I'm completely obsessed with it it's so cute. I finished it with a purple lettuce Edge and it Ruffles because of the way I applied the elastic. The cups are a little bit stretchy. They are comfortable and they would fit anywhere from a B cup to a DD size, depending on how much coverage you want. All parts of this are made from reclaimed denim. I've seen people swim in jeans so I think it would be fine in the water, but this is not made of swimwear material it is made from stretch denim.