Speedo Men's ProLT Quick-Drying Jammer Swimsuit Get a competitive edge in comfort with a best-selling Speedo Men’s ProLT jammer. Designed with a front gusset to give you more freedom to move and no pinching, you can train with maximum comfort and in long-lasting, high-quality material engineered by Speedo. HIGHLIGHTS Long-lasting Quick-drying Front gusset 85% Polyester / 15% Spandex