Caterpillar Men's Second Shift Steel Toe Work Boot 100% Leather Imported Rubber sole Steel-toe work boot in rugged leather featuring plush collar and tongue with logos Hex-shape grommets with speed lacing at shaft Oil-resistant traction outsole Nubuck leather or pull up leather nylon mesh lining provides added breathability and comfort Steel shank for added support and stability Removable PU Sock Liner provides all-day comfort