The TYR 8" Nylon Trainer is perfect for both recreational and competitive swimmers to train in all year long. Made of durable, doulble layered, 100% Antron® nylon with flat braided drawcord and reflective silver taping. Longer 8" length is perfect for those who want less drag than shorts offer but who feel too exposed in briefs. Sizes are for waist (in inches). Available in Navy or Black.