The One wakeboard was designed for a looser overall feel and quick release off the wake that doesn't sacrifice stability. Smooth blend in the variable rail provides more predictable edge transfers. Every aspect of the One board's rocker was built for the least amount of resistance. This allows you to ride longer with less work and carry more overall speed into the wake. Thin profile reduces swing weight. Clean center bottom design. Deeper side vents for fins. ATR construction features durable, nonstick, sintered base that maintains glide speed, parallel carbon fiber weave to provide a more rigid layup than traditional fiberglass, ultra stiff core, and Krypto cable to strengthen the sidewalls. One ATR 134: 52.8"L x 16.6"W. For riders up to 165 lbs. One ATR 138: 54.3"L x 16.8"W. For riders up to 180 lbs. One ATR 142: 55.9"L x 17"W. For riders over 170 lbs. One ATR 146: 57.5"L x 17"W. For riders over 175 lbs.