The Timberland Pro Radius women’s composite-toe work shoes take on the toughest job sites and keep your feet protected. This safety footwear is metal-free and features an electrical hazard protection rating. The upper uses REBOTL™ material which is rugged and good for the environment. It is made of at least 50% recycled PET (recycled polyethylene terephthalate, the stuff plastic bottles are made of). The lightweight, non-metallic, asymmetrical-shaped toe cap meets US and Canadian safety standards including ASTM F2412-11 and ASTM F2413-11 I/75 and C/75 impact and compression safety standards. Inside, this shoe has their Anti-fatigue technology which is made specifically for people who spend long days on their feet. The midsole and uses geometric cone support to provide exceptional standing comfort, shock absorption, and energy return all day.