Earning Shawn Watson's seal of approval, the Watson Pro model features carbon X construction for increased torsional rigidity. The triple concave, aggressive 3-stage hull design generates a high trajectory pop off the wake, yet breaks the water for softer landings, all while maintaining speed and flow. Concave V-channels at the tips increase speed and lift and provide for strong edge hold. The Transit Boot blends ease of entry and use with upper level performance. Liquid Fit Technology means you'll enjoy a custom fit and a full internal liner stretch zone for easy entry without any mechanical pieces. Watson 135: 53.2" x 16.8". For 90-170 lb. riders. Watson 139: 54.8" x 17.2". For 130-210 lb. riders. Watson 143: 56.4" x 17.5". For 160-250 lb. riders. Transit Boot sizes: S(5-8), M(8-10), L(10-12), XL(12-15).