Kid’s Arctic Storm Extreme-Cold Conditions Boot Extra layers of rugged protection for active kids! Comfort, warmth and stability for all-day play even on the coldest days. DS1 molded outsole – outer and inner grip 6 layers of protection Extra layers of insulating warmth and protection! 5.5 mm bootie; 2.5 mm DENSOPRENE XD foam (extreme density) for extra protection; 2 mm airmesh; 2 mm warm fleece lining Removable molded EVA sockliner Double achilles heel and instep reinforcement for comfort and protection Nylon shank All Dryshod Neoprene Rubber Boots have these Features 100% WATERPROOF Designed and built to be 100% waterproof from top to bottom. 5mm DENSOPRENE® FOAM INSULATED BOOTIE Keeps out the cold & wet. Keeps in warm & dry. HYDROKOTE® WATER-REPELLENT No more soggy boots. Water rolls off and dries in seconds. 4-WAY STRETCH BREATHABLE AIRMESH LINING Promotes airflow to keep your feet dry and comfortable. EASY-ON/EASY-OFF 4-way stretch materials and generous heel kick for easy-on/easy-off convenience. ROLL-DOWN CALF PIPE Roll down the top to tuck in your pant leg or vent in warm temperatures. GENUINE NATURAL-RUBBER OVERLAYS Only genuine hand-laid rubber. No PVC, PU, or TPR. SUPERIOR STABILITY Reinforced tuck board with rigid shanks for added stability. SUPERIOR FIT AND COMFORT Slipper-soft comfort and sized to athletic-shoe standards. CONVENIENT BACK-PULL TABS Sturdy pull tabs for easy-on/easy-off convenience and safety.