Swim brief from Amazon

These are super cute, but just didn’t arrive in time for the event they were intended for. They don’t have a brand name because they came from Amazon and couldn’t be returned. I’m not sure of the material, but they are some sort of nylon/spandex blend. They don’t have a big pouch. The small measures 13” across the waist laying flat. The medium measures 13.5” across the waist laying flat.