Double Layer Premier Leather 1" Leather Strap Double stitched Box X Toe Construction Bonded Nylon Thread The double layer premier leather sandal offers all the great features found in our single layer leather sandal, but with an added layer of midsole and pin line, which runs from the heel to the front of the arch, for even more comfort and support.The midsole is made to break down 10% under your foot so you have the perfect mold for your individual feet. The layers are all triple glued for maximum durability, and rests on our non-slip Rainbow bottom.This sandal displays the Original Rainbow woven label on the strap, the mark of a genuine Rainbow Sandal.