The EVA covers are not an Orthotic product, they are replacements for the Flex product covers. Depending on wear, the EVA covers will last 6-12 months before needing to be replaced. Simply peel the existing cover off and place the new cover upon the Flex Product.
 
Interpod EVA top covers are an essential accessory for enhancing the performance and comfort of Interpod Flex Orthotic Insoles. These top covers, made from high-quality EVA foam padding, provide exceptional cushioning and support, making them a must-have addition to your orthotic insole collection.