Timberland PRO 24/7+ Enhanced Comfort Technology: Designed to help reduce foot fatigue by dispersing pressure, support the arch and cushion in every step with an Ortholite PU footbed and a lightweight high-rebound midsole. Composite Safety Toe: Lightweight, non-metallic, asymmetrical-shaped toe cap that meets US safety standards including ASTM F2412-18a and ASTM F2413-18 I and C impact and compression safety standards. Slip-Resistant Oily (SRO): Meets the SRO requirements of ASTM F2413, F2892, or F3445, when tested to F2913. Rubber Outsole: Heat-resistant, durable rubber compound offers enhanced slip, oil and abrasion resistance. Metal Free: This footwear is metal-free and won't set off metal detectors.