Orthotic for cleat

Abstract

An orthotic insert for use in a shoe to support a wearer's foot. The orthotic insert includes a cushion layer having a heel portion adapted to receive a heel of the foot and a toe portion adapted to receive a toe of the foot. A bottom layer extends substantially the length of the cushion layer. A support layer resides between the cushion layer and the bottom layer and extends from about the heel portion toward the toe portion of the cushion layer. The support layer ends in an edge that extends at least partially across a width of the cushion layer. The support layer includes a multilayer carbon fiber and polymer composite having a specified shape adapted to impart support to the foot. The bottom layer substantially covers the edge of the support layer.

1 . An orthotic insert for use in a shoe to support a wearer's foot, comprising: 
 a cushion layer having a heel portion adapted to receive a heel of the foot and a toe portion adapted to receive a toe of the foot;    a bottom layer extending substantially the length of the cushion layer; and    a support layer between the cushion layer and the bottom layer and extending from about the heel portion toward the toe portion of the cushion layer and ending in an edge that extends at least partially across a width of the cushion layer, the support layer having a specified shape adapted to impart support to the foot, the bottom layer substantially covering the edge of the support layer.    
     
     
         2 . The orthotic insert of  claim 1  wherein the support layer comprises a multilayer carbon fiber and polymer composite.  
     
     
         3 . The orthotic insert of  claim 1  wherein the bottom layer is adapted to resist sticking to the interior of the shoe.  
     
     
         4 . The orthotic insert of  claim 1  wherein the bottom layer is adapted to substantially prevent contact of the support layer with the shoe.  
     
     
         5 . The orthotic insert of  claim 1  further comprising a covering layer adjacent the cushion layer and opposite the support layer.  
     
     
         6 . The orthotic insert of  claim 4  wherein the bottom layer is adhered to the covering layer.  
     
     
         7 . The orthotic insert of  claim 4  wherein the covering layer is antimicrobial, antibacterial, or antifungal.  
     
     
         8 . The orthotic insert of  claim 1  wherein the bottom layer is selected from the group consisting of vinyl, leather, artificial leather, and neoprene.  
     
     
         9 . The orthotic insert of  claim 1  wherein the cushion layer is selected from the group consisting of polystyrene foam, microporous plastic, ethyl vinyl acetate foam, and leather.  
     
     
         10 . The orthotic insert of  claim 1  wherein the support layer comprises a multilayer polymer composite selected from the group consisting of carbon, carbon fiber, fiberglass, and aramid fiber.  
     
     
         11 . The orthotic insert of  claim 1  wherein the cushion layer material is specifically chosen to provide predetermined degrees of vibration damping and impact absorption.  
     
     
         12 . The orthotic insert of  claim 1  wherein the support layer material is specifically chosen to provide predetermined degrees of support and flexibility.  
     
     
         13 . The orthotic insert of  claim 1  wherein the bottom layer material has a predetermined combination of static and dynamic coefficients of friction such that friction between the bottom layer and the shoe increases with increased pressure applied by the wearer's foot, substantially preventing movement between the shoe and the insert.