P508 Carolina Men's Electrical Hazard Metatarsal Guard Steel Toe 6" Brown Boot. Made in the USA, the Carolina P508 is one of our best selling metatarsal boots because it combines a plush comfort fit with a long lasting durable exterior for challenging environments. Full grain Briar Pitstop Leather upper, a leather wrapped external Metatarsal Guard, DRYZ Pillow Cushion insole for moisture absorption and all day comfort, a breathable Dri-Lex Lining for moisture wicking around the foot, a Radiantex Insole-- consisting of Radiantex, wool, and polypropylene-- to keep the foot warm and dry, and Kevlar Welt Stitching for durability. Vibram Sole for Oil and Heat Resistance, Steel Toe.