Size 28 (XS) New with tags and hygienic liner. Never worn Get ready for training, competition, or just some recreational swimming with Roka Men's Elite Jammer. These jammers come in a sleek black color with a solid pattern with a red trim at the waist and are made of durable polyester material. The swim bottom style is jammer with a drawstring for a secure fit. Triathlon, swim, and dive.