Swim fin

Abstract

A swim fin includes a foot pocket with a front and rear sections, an upper portion formed of an elastomeric material, a sole, and a foot pocket cavity. The rear section has a rear edge defining the foot pocket cavity. The foot pocket further has an array of through holes disposed through the upper portion adjacent the rear section. The array of through holes is sized and configured to generally increase a surface area of the rear section from the rear edge towards the front section. The swim fin includes a fin blade extending from the front section of the foot pocket. The swim fin may further include an adjustable heel strap. The fin blade may further include side rails attached to the foot pocket with hinges. The fin blade may further include a flex member disposed between first and second body members.

1 . A swim fin for wearing upon a foot of a user, the swim fin comprising:
 a foot pocket having:
 a front section; 
 a rear section; 
 an upper portion formed of an elastomeric material; 
 a sole; 
 a foot pocket cavity disposed between the upper portion and the sole, the rear section having a rear edge defining the foot pocket cavity; and 
 an array of through holes disposed through the upper portion adjacent the rear section, the array of through holes being sized and configured to generally increase a surface area of the rear section from the rear edge towards the front section; and 
   a fin blade extending from the front section of the foot pocket.   
     
     
         2 . The swim fin of  claim 1  wherein a sizing of the through holes generally decrease in a direction from the rear section towards the front section. 
     
     
         3 . The swim fin of  claim 1  wherein a spacing between the through holes in a direction lateral to the front and rear sections generally increase in a direction from the rear section towards the front section. 
     
     
         4 . The swim fin of  claim 1  wherein the through holes are circular. 
     
     
         5 . The swim fin of  claim 1  wherein the rear edge is upturned away from the foot pocket cavity. 
     
     
         6 . The swim fin of  claim 1  wherein the foot pocket has opposing lateral sides extending along the front and rear sections, the foot pocket further has a pair of drain holes formed through the upper portion at the front section and respectively adjacent to the opposing lateral sides. 
     
     
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