Sole attachment for footwear

Abstract

A sole device or attachment for shoes, boots, athletic shoes, and similar footwear. The device comprises an undershoe attachment made of a lightweight material, including but not limited to rubber or foam, or a combination thereof. The device may come in various sizes to correspond to footwear sizes currently known, and may be of larger size than the corresponding footwear. The device may be attached to the sole of footwear directly by operation of spikes on the bottom of the footwear, or may be secured by one or more straps that extend across the footwear, or some combination thereof.

1 . A device to attach to the bottom of a user's footwear, comprising:
 a body with a top and bottom comprised of a lightweight material; and   means for attaching the body to the sole of the user's footwear.   
   
   
       2 . The device of  claim 1 , wherein the attachment means comprises one or more straps, said straps removably or permanently fastened at one end to the side of the body. 
   
   
       3 . The device of  claim 1 , wherein the body is penetrated by spikes or cleats on the footwear. 
   
   
       4 . The device of  claim 1 , further comprising a plurality of holes, slots or grooves in the top of the body. 
   
   
       5 . The device of  claim 1 , further comprising a traction layer on the bottom of the body. 
   
   
       6 . The device of  claim 5 , wherein the traction layer is patterned. 
   
   
       7 . The device of  claim 1 , further comprising a raised rim around at least a portion of the top perimeter of the body. 
   
   
       8 . The device of  claim 1 , wherein the lightweight material comprises rubber, in whole or in part. 
   
   
       9 . The device of  claim 1 , wherein the lightweight material comprises foam, in whole or in part. 
   
   
       10 . The device of  claim 1 , wherein the lightweight material comprises closed-cell, in whole or in part.