Steel-Toe Max Extreme-Cold Conditions Protective Work Boot Safety matters! Steel-toe protection and all-day comfort! Now with extra layers of protection provide unsurpassed warmth on the coldest days! Features Solid rubber, long-wearing outsole for traction and durability Special broad-toe last – 3 mm extra space ANSI-rated steel toe for safety Meets ASTM F2413-11 M I/75 C/75 EH Rigid triple-layer toe and heel reinforcements Yellow treatments to indicate safety 6 layers of protection plus EVA cold-blocking midsole = 7 layers 5. 5 mm bootie 2. 5 mm DENSOPRENE XD foam (extreme density) for extra protection 2 mm airmesh 2 mm warm fleece lining = 11 mm of insulating warmth and protection! Removable molded EVA sockliner Double achilles heel and instep reinforcement for comfort and protection Features unisex sizing Steel shank for added arch support 5 mm DENSOPRENE FOAM INSULATED BOOTIE Keeps out the cold & wet. Keeps in the warm & dry. HYDROKOTE Water-Repellent No more soggy boots. Water rolls off and dries in seconds. 4-Way Stretch Breathable Airmesh Lining Moves the air 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.