Oliver 65 Series 10" Leather Puncture-Resistant Waterproof Men's Steel Toe Mining Boots with Metatarsal Guard, Black (65690) Leather, TPU, PU, Rubber Oliver series safety footwear for the Oil and Gas industry feature chemical- and liquid-resistant, and barnyard acid-resistant SPR leather With hard-wearing thermoplastic urethane (TPU) safety cell reinforcement to provide excellent protection from oils and minerals, cuts and abrasions Made in China