4 mm neoprene provides comfort and flexibility along with excellent waterproofing shock absorption and heat retention properties adjusts to the shape of your feet to resist blisters and chafing 3Season outdoor boots spring summer fall midheight shaft rolls down to ankle for more breathability and movement rear pull loop for easy onoff Breathable Air mesh lining wicks away humidity and perspiration and allows air to travel throughout the boot while keeping water out comfort rated from subfreezing to 65 F18 C Highgrade rubber exterior provides extra toughness and makes for a 100 waterproof garden boot hightraction outsole offers excellent grip and selfcleans for added stability on slick surfaces