These boots are 100% Waterproof; Fully lined with 5mm neoprene for flexibility; Boots feature fleece lining for warmth and comfort; Lightweight EVA midsole for added comfort; Rugged outsole for a better grip; bioDEWIX Dry footbed insert topcover that prevents growth of smells; NZYM for smell control and moisture management; Mid-height with pull-tab for easy on and off; Hard-wearing outsole designed for optimum use on muddy surfaces; Estimated boot height 31cm/ 12.4"