Topless shoe

Abstract

Provided is a shoe, including a concave body having an erecting circumferential rim having one or more foot securing areas along at least a portion of the circumference of the rim, where the one or more foot securing areas are inwardly-protruding, so as to secure a foot in the concave body when the shoe is worn, and where the one or more foot securing areas have an elasticity that enables the one or more foot securing areas to be pushed outwardly to receive the foot.

1 .- 19 . (canceled) 
     
     
         20 . A shoe, comprising:
 a concave body having an erecting circumferential rim having one or more foot securing areas along at least a portion of the circumference of said rim,   wherein said one or more foot securing areas are inwardly-protruding, so as to secure a foot in said concave body when said shoe is worn, and wherein said one or more foot securing areas have an elasticity that enables said one or more foot securing areas to be pushed outwardly to receive the foot.   
     
     
         21 . The shoe according to  claim 20 , wherein inwardly-protruding comprises said one or more foot securing areas having a vertical-axis differential of approximately 0.1-2 centimeters between an inward-most area and an outward-most area of said rim. 
     
     
         22 . The shoe according to  claim 20 , wherein said one or more foot securing areas extend along at least 50% of the circumference of said rim. 
     
     
         23 . The shoe according to  claim 20 , wherein said one or more foot securing areas extend along at least 70% of the circumference of said rim. 
     
     
         24 . The shoe according to  claim 20 , wherein said one or more foot securing areas extend along at least 90% of the circumference of said rim. 
     
     
         25 . The shoe according to  claim 20 , wherein said concave body consists of a unitary piece of material. 
     
     
         26 . The shoe according to  claim 20 , wherein said concave body comprises:
 a first layer serving as an insole; and   a second layer disposed on an outer surface of said first layer.   
     
     
         27 . The shoe according to  claim 20 , wherein said concave body comprises a first layer serving as an insole; and a second layer disposed on an outer surface of said first layer, wherein said second layer serves as an outsole. 
     
     
         28 . The shoe according to  claim 20 , wherein said concave body comprises a first layer serving as an insole; and a second layer disposed on an outer surface of said first layer, wherein said second layer serves as a midsole, and wherein the shoe further comprises a third layer serving as an outsole and being disposed on an outer surface of said second layer. 
     
     
         29 . The shoe according to  claim 20 , wherein said concave body comprises a first layer serving as an insole; and a second layer disposed on an outer surface of said first layer, wherein said first layer comprises silicone. 
     
     
         30 . The shoe according to  claim 20 , wherein said concave body comprises a first layer serving as an insole; and a second layer disposed on an outer surface of said first layer, wherein said first layer comprises polyethylene foam. 
     
     
         31 . The shoe according to  claim 20 , wherein said concave body comprises a first layer serving as an insole; and a second layer disposed on an outer surface of said first layer, wherein said second layer comprises acrylonitrile butadiene styrene (ABS). 
     
     
         32 . The shoe according to  claim 20 , wherein said concave body comprises a first layer serving as an insole; and a second layer disposed on an outer surface of said first layer, and further comprising a third layer comprising silicone. 
     
     
         33 . The shoe according to  claim 20 , wherein said concave body comprises a first layer serving as an insole; and a second layer disposed on an outer surface of said first layer, and further comprising a third layer comprising polyurethane. 
     
     
         34 . A shoe, comprising:
 a sole-shaped surface having one or more elastic, polymeric foot securing areas along at least 50% of a circumference of said sole-shaped surface,   wherein each of said one or more foot securing areas is inwardly-protruding, such that a vertical-axis differential of approximately 0.1-2 centimeters exists between an inward-most area and an outward-most area of said each of said one or more foot securing areas, and said one or more foot securing areas are configured to be pushed outwardly when receiving the foot.   
     
     
         35 . The shoe according to  claim 34 , wherein said one or more foot securing areas extend along at least 70% of the circumference of said sole-shaped surface. 
     
     
         36 . The shoe according to  claim 34 , wherein said one or more foot securing areas extend along at least 90% of the circumference of said sole-shaped surface. 
     
     
         37 . The shoe according to  claim 34 , wherein said sole-shaped surface and said one or more foot securing areas are integrally formed and consist of a unitary piece of material. 
     
     
         38 . The shoe according to  claim 34 , wherein each of said sole-shaped surface and said one or more foot securing areas is made of at least one polymeric material selected from the group consisting of silicone, polyethylene foam, acrylonitrile butadiene styrene (ABS), and high-density polyurethane.