The men's Rocky XRB Steel Toe Rubber boot is unlike any other rubber boot. Made for Xtreme outdoor play and work, this 14.5-inch pull-on boot, constructed with a Hi-Vis yellow 7 mm neoprene shaft has a 3D molded TPU overlay for extra durability. Keeping you safe on the job, the steel toe meets ASTM F2413 protective toe standard and the Comfort Cushion on the interior heel provides stability and superior fit. This tall boot, with adjustable gusset, keeps you protected from water and allows you to loosen the upper to fit over any calf and bulky pant leg and then tighten back into place. An exterior rubber heel kick makes these boots easy to kick off. The vulcanized rubber construction is extra durable and is waterproof. For work in colder temperatures, these boots are lined with Dri-Blaze. thermal insulation. This insulation isn't bulky and performs as if you are wearing a boot with the equivalent of 800-100 grams of insulation. For a rubber boot made to withstand the job, get the Rocky XRB Steel Toe Rubber boot.