Speedo Men's Solar 1" Brief Swimsuit at SwimOutlet.com
100 Swimming Briefs Boys' | Decathlon
an indoor swimming suit similar that looks like this but isn't thick/made for open water? I prefer to keep most of my body covered, wetsuits seem to be thicker than jammer/speedo material.
Women's Open Temperate Water Neoprene Swimsuit | Decathlon
Kiwami Triathlon North America - Moana Gold Coast One-Piece Swimsuit