If your training jammer stretches out, loses its shape, or starts breaking down after weeks in the pool, you're losing more than comfort — you're losing focus. The Speedo Men's Solid Endurasoft Swim Jammer at Swim2000 is built to resist chlorine degradation and maintain its compressive fit session after session. Its performance-oriented cut supports your hydrodynamics while the soft EnduraSoft fabric keeps you comfortable through every lap. Train with confidence knowing your gear is as consistent as your stroke. EnduraSoft fabric — soft feel with strong chlorine resistance Compression fit for streamlined, performance-oriented support Internal drawcord for secure, adjustable waist fit Quick-dry, shape-retaining construction Smooth internal lining for all-session comfort Available in Team Black, Team Navy, Team Royal Blue, and Team Red Sizes 22–40 Speedo Size 26 28 30 32 34 36 38 40 42 44 USA 28 30 32 34 35 36 38 39 41 43 Waist (Inches) 27.5 - 28.5 29 - 30 30.5 - 31.5 32 - 33.5 34 - 35.5 36 - 37.5 38 - 40 40.5 - 42.5 43 - 45 45.5 - 47 Hips (Inches) 31.5 - 32.5 33 - 34 34.5 - 35.5 36 - 37.5 38 - 39.5 40 - 41.5 42 - 44 44.5 - 46.5 47 - 49 49.5 - 52