Mono-fin with flexible boot structures

Abstract

A mono-fin for swim training is disclosed. The mono-fin has two separated boot structures that from two separate foot cavities for holding feet with toes positioned in front regions of each of the boot structures and heels positioned at back regions of each of the boot structures. The mono-fin has a mono-fin structure with blades portions connecting the boot structure through the front regions of each of the boot structures. In a middle region of the mono-fin structure and between the blade portions, there is flex region. The flex region allows angles between the boot structures, distances between the back regions of the boot structures and angles between the blade portions to be changed simultaneously by a swimmer while swim training in an aquatic environment.

What is claimed is: 
     
         1 . A mono-fin comprising boot structures with separated foot cavities for holding feet molded to a mono-fin structure near toe regions of the boot structures, the mono-fin structure being formed by two blade portions with a a flex region positioned between the two blade portions, wherein angles between the boot structures, distances between the boot structures and angles between the two blade portions are changeable while swimming. 
     
     
         2 . The mono-fin of  claim 1 , wherein the mono-fin is monolith and formed from one or more molded polymeric materials. 
     
     
         3 . The mono-fin of  claim 1 , further comprising strap features for securing the feet within the separate foot cavities. 
     
     
         4 . The mono-fin of  claim 1 , where in mono-fin structure has a valley or V-shaped indentation positioned between the blade portions and at the flex region. 
     
     
         5 . A mono-fin comprising:
 a) boot structures with separated cavities for holding feet with toes positioned in front regions of each of the boot structures and heels positioned at back regions of each of the boot structures; and   b) a mono-fin structure molded to or near to the front regions of each of the boot structures, the mono-fin structures including two blade portions with a flex region positioned between the two blade portions wherein angles between the boot structures, distances between the boot structures and angles between the two blade portion are changeable while swimming in an aquatic environment.   
     
     
         6 . The mono-fin of  claim 5 , wherein the mono-fin structures is formed from one or more molded polymeric materials. 
     
     
         7 . The mono-fin of  claim 5 , further comprising strap features for securing the feet within the separate cavities. 
     
     
         8 . The mono-fin of  claim 5 , where in mono-fin structure has a valley or V-shaped indentation positioned in the flex region between the two baled portions. 
     
     
         9 . A mono-fin comprising:
 a) two separate boot structures for holding feet with toes positioned in front regions of each of the boot structures and heels positioned at back regions of each of the two separated boot structures; and   b) a mono-fin structure molded to two separate boot structures as a monolithic unit, the mono-fin structures including a flex region between the two blade portions such angles between the two blade portions are changeable while swimming in and aquatic environment   
     
     
         10 . The mono-fin of  claim 9 , wherein the flex region in includes a valley or V-shaped indentation positioned between the two baled portions. 
     
     
         11 . The mono-fin of  claim 9 , further comprising strap features for securing the feet within the two separated boot structures. 
     
     
         12 . The mono-fin of  claim 9 , wherein the two blade portion are coupled through a living hinge in the flex region of the mono-fin structures.