The insole is not glued to the boot, so it bunches up at the toes. Before using the shoes, take a bottle of rubber glue, smear it on the bottom of the insoles, and stick it on the shoes. Do this especially before you put them on the beach because if sand gets in your shoes and you try to stick the insoles on later, the sand will prevent them from sticking. The shoes have a strong rubber smell, but other than that they're not bad.