Enjoy easy kicking for extended periods with these rugged, durable fins, which feature a soft anatomical foot pocket and mid-sized blade with three channels for optimal movement of water while kicking. Features upper and lower stabilizers to help transfer energy from the foot pocket to the blade. Two year limited warranty.Sizes40/4142/4344/4546/47Blade*13 3/8" (34cm.)14 3/16" (36cm.)14 3/16" (36cm.)14 13/16" (37.5cm.)*Blade is measured from the end of the footbed to the end of the blade.