Cruise through the water in these special fins, which feature Channel Thrust techology: a patented technology that maximizes thrusting power via channeling water and moving larger amounts of it to maximize efficiency. Rubber-enforced lateral ribs improve the blade's elastic recovery. Features soft, anatomical foot pocket with a comfortable reinforced heel that won't caused fatigue during extended dives. Perfect for divers looking for a shorter fin that is still powerful and highly reliable. Two year limited warranty.Size40424446*Blade17 5/16" (44cm.)17 7/8" (45.5cm.)17 7/8" (45.5cm.)*Blade is measured from end of footpocket to end of blade.