The Excite Pro has been optimized for maximum thrust thanks to innovative materials and channel thrust technology! The innovative Excite diving fin has been optimized for low fatigue on dives, with Mares' great channel thrust technology! Innovative materials for a more harmonious thrust provided by a blend of thermoplastic rubber and techno polymers. Enhanced channel thrust optimized for low fatigue and color coordinated bungee strap add a touch of style. The open heel design bungee straps have a large thumb pull loop for easy donning and doffing. The fins blade measures 15.7" (40cm) in size regular, has a non-vented blade surface area of 124 square inches (800 square centimeters) and weighs 2 lbs. (900 g). Fins are available in multiple sizes.