Size: 10' x 31" x 4.38" Volume: 153 L Suggested Rider Weight: 90-170 lbs. Size: 10.6' x 31.25" x 4.38" Volume: 165 L Suggested Rider Weight: 110-240 lbs. Size: 11' x 31.5" x 4.38"" Volume: 181 LSuggested Rider Weight: 130-240 lbs. This board is 100% hand shaped, sprayed and glassed. The shape was created by World Champion Surfer, Waterman and Hall of Fame Shaper: Mike Doyle. The Sport series board is by far our most popular model. Each board has just enough rocker to keep you above the chop and the 10″ fin keeps you tracking a straight course where ever you may paddle. The width and thickness of the board make it extremely stable and will have you standing up and paddling in no time at all. We're making this series available in just a few solid colors and 3 sizes but with the same sound construction as the entire Doyle SUP Line.