Timberland PRO 24/7 Comfort System: The Timberland PRO 24/7 comfort suspension system technology helped reduce foot fatigue, supports the arch and cushions every step Steel Safety Toe: Metallic, asymmetrical-shaped toe cap meets US and Canadian safety standards including ASTM F2412-18a and ASTM F2413-18 I and C impact and compression safety standards and CAN/CSA-Z195-14 Grade 1 Rubber Outsole: Heat-resistant, durable rubber compound offers enhanced slip, oil and abrasion resistance ReBOTL Material: Products with ReBOTL material contain at least 50% recycled PET (recycled polyethylene terephthalate, the stuff plastic bottles are made of) excepting trace materials SD10: Protects against hazards related to excessively low footwear resistance and meets SD10 static-dissipative ASTM F2412·18a, ASTM F2413-18 and ASTM F2892-18 safety standards