Flipper

Abstract

A flipper includes a foot pocket having a completely open front portion and a blade forward extended from two sides of the foot pocket, such that an opening is formed between the open front of the foot pocket and the blade to communicate an inner space of the foot pocket with a space behind the blade. A wearer's toes are exposed from the open front portion of the foot pocket to freely move in the opening and therefore lose an origin of force, making the wearer naturally apply forces from instep and plantar arch to move the blade downward and upward, respectively, and therefore be protected against sore and pain toe knuckles and convulsed calves, and allowed to dive for a prolonged time without consuming too much body strength.

What is claimed is:  
     
         1 . A flipper comprising a foot pocket having an open front portion, and a blade forward extended from two sides of said foot pocket, so that an opening is formed between said open front portion of said foot pocket and said blade to communicate an inner space of said foot pocket with a space behind said blade.  
     
     
         2 . The flipper as claimed in  claim 1 , wherein said foot pocket and said blade are separately manufactured and then assembled to form a complete flipper, and said opening comprising said open front portion of said foot pocket.  
     
     
         3 . The flipper as claimed in  claim 1 , wherein said foot pocket and said blade are integrally formed to provide a complete flipper, and said opening comprising said open front portion of said foot pocket and an open area on said blade immediately adjacent to said open front portion of said foot pocket.