CHIPPEWA NANO COMPOSITE TOE 11 INCH WATERPROOF PULL ON WORK BOOT BROWN - MENSThe Chippewa Thunderstruck work boots are a great choice for any working environment. They have Vibram Thunderstruck TC4 plus outsoles that are oil and slip resistant, and have a rugged, multi directional tread pattern that provides outstanding traction on any type of terrain. Whether you are working out in the rain on slick surfaces, or working on rocky or uneven terrain, these boots offer superior grip and stability.