Timberland PRO 24/7 Comfort System: A unique comfort system that meets the most rigorous worksite demands- 24 hours a day, 7 days a week- 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 that 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. Metatarsal Guard: Meets US and Canadian safety standards including ASTM F2412-18a and ASTM F2413-18 and CAN/CSA-Z195-14 metatarsal impact resistance. Waterproof Membrane: Delivers maximum waterproof protection and meets ASTM F1671-07 safety standard. Timberland PRO Rubber: Heat-resistant, durable rubber compound offers enhanced slip, oil and abrasion resistance.