100% WaterproofFully lined with 5mm CR Flex-Foam neoprene, 100% waterproof with exceptional comfort, flexibility, shock absorption and heat retention properties; adjusts to the contours of your foot to resist blisters and chafingFleece lining for additional warmthExtended rubber coverage for added protectionComfort insolebioDEWIX™ antimicrobial footbed insert topcover with NZYM™ for odor control and moisture managementLightweight, cushioned EVA midsole for added comfortRugged rubber outsole offe