The Natural wakeboard started O'Brien's Delta base revolution! Its ridiculously smooth edge response and Delta base keep the board riding high and fast. Full-length V-bottom softens landings and increases edge-to-edge response, while the 3-stage rocker and wide profile provide effortless pop so you can nail your tricks with ease. Perfect for the rider who prefers a tail-heavy approach to the wake. The variable beveled edge and quad molded fins provide secure edging even when not using the optional center fin. One ride is all it takes. Natural 134: 52.8"L x 16.85"W. For 90-170 lb. riders. Natural 139: 54.7"L x 17.1"W. For 140-220 lb. riders. Natural 144: 56.7"L x 17.35"W. For 170-250 lb. riders.