Probably the best waterproof work boot on the market. Invented by Jim Donohue, founder of Muck Boots.  Jim has developed this line to continue his quest to make the best waterproof boot.  100% waterproof, the Dryshod boot is built on a DENSOPRENE foam, a super-dense neoprene material that keeps the cold/wet out and the warm/dry in  4-WAY STRETCH BREATHABLE AIRMESH LINING - All Dryshod footwear is lined with our exclusive breathable air mesh lining to keep your feet dry and comfortable.  Roll down the top to tuck in your pant leg or vent in warm temperatures Sturdy pull tabs for easy-on/easy-off convenience and safety Slipper-soft comfort and sized to athletic-shoe standards Reinforced tuck board with rigid shanks for added stability EH Rated – Meets ASTM F2413-11 M I/75 C/75 EH ANSI Rated Steel Toe Steel Shank Comfort Range: -20°F to 75°F DryShod Waterproof Steel Toe Work Boot STT-UH-BK