Spence RX orthotic, arch support, full length, shoe insoles. 2 pairs moldable, arch insert/orthotic. Two pairs: one pair used only couple of hours and the second pair is brand new. I realized I bought the wrong size. These are for a female wearing a size 7 through 8 1/2 shoe or a male wearing a size 6 through 7 1/2 shoe. They are 100% nylon. Full length insole provides complete heel to toe comfort. Absorb shock and impact to provide comfort. Great product when I figured out the right size love them!