Superfeet "Carbon" Support Insoles Size:E (9.5-11) and four rows of stitching

and four rows of stitching on the fly end for added durability

The entire footbed is made of open-cell polyurethane for better heat dissipation and air circulation

In addition to the embroidery

The front zipper is backed by a storm flap to help seal out the cold

1 1/2 inch cuffs with hook and loop closure

Superfeet "Carbon" Support Insoles Size:E (9.5-11) and four rows of stitchingBreakthrough design combines the strength of carbon fiber with ultralight foam to create one of our most innovative, high performance Superfeet insole ever. HOW IT WORKS Superfeet insoles help adapt the flat midsole of the footwear to your foot. Three foam layers work together to capture an impression of your foot, while the distinct Superfeet shape and structured heel cup help to stabilize the foot and provide support. DURABLE CONSTRUCTION Superfeet