Rubber And Neoprene Made in the USA or Imported Features WIXIT Cool-Clad wicking airmesh lining with added micro-dot perforations. Wicks away moisture and allows the air to flow more than traditional airmesh. Keeps the foot cooler in warmer temperatures. GENUINE NATURAL RUBBER OVERLAYS - This protective design starts with only genuine hand-laid rubber- No PVC, PU, or TPR HYDROKOTE WATER-REPELLENT- All DRYSHOD boots are built to be 100% waterproof from top to bottom. Water rolls off the nylon outer and dries in seconds keeping the exterior textile from icing up and from retaining water in the fibers in wet conditions SUPERIOR FIT AND COMFORT - Reinforced tuck board with steel shanks for added stability; slipper-soft comfort and sized to athletic-shoe standards - the boots are designed to be flexible and lightweight with superior maneuverability Features a “shoe horn top” opening for ease of slipping in and out of boot