Used SPEEDO men's short boom swim briefs, size M. I used these for about three and a half months, from April, at a pace of 3-4 times a week. The elastic is still good, and the fabric hasn't worn out or become see-through, so I think they are still usable. Please understand that this is a used item and consider purchasing after viewing the photos. The item will be placed in a plastic bag and then shipped in a padded envelope.