Size: 5'10" / 6'4" / 6'10" Dimensions: 5'10" x 20 1/2 x 3 , 6'4" x 21 x 3 , 6'10" x 21 1/2 x 3 Core: 100% Waterproof X-Density EPS Foam Core Stringer: Double Stringer Fin Setup:Tri (x3 FCS II Fin Setup) Fin System: FCS II Volume: 5'10": 44L | 6'4": 56L