Everyone has a weak a leg over the course of a triathlon. However, regardless of whether the swim is your Achilles' heel or not, you'll still benefit from training with the TYR Catalyst Contour Training Paddles. Its polypropylene composition, combined with the paddles' convex plane, ensures that the paddle will conform to your palm. Accordingly, while evenly distributing pressure during your stroke, the proprietary shape creates a natural feel through the water. Additionally, the paddles' concave underside creates the perfect form by maintaining an in line movement when correct, and throwing the hand off course when incorrect. As a result, both your orientation and sensation in the water is enhanced, leading to a refined and efficient form on race day. The TYR Catalyst Contour Training Paddles are available in the sizes Small, Medium, and Large. As for colors, Small is available in White, Medium in Red, and Large in Smoke Transparent.