Whether you have flat feet or just need a little more cushion this Cushion Insole is just what you need to feel a big difference. We started by adding extra high impact zone padding to our wicking, anti-microbial pad. And to guarantee your boots to stay scent free, we utilize state of the art activated carbon technology. By setting the top high impact zone layer over our 4mm high density moldable foam, you'll barely notice the rockiest trails you follow. Imported. Men's shoe sizes S(5-6.5), M(7.8.5), L(9-10.5), XL(11-12), XXL(13-14). Women order S(6-7.5), M(8-9.5), L(10-11). Kenetrek Boots Kenetrek Cushion Insole KE-371 in Black, 3XL