Composite safety toe work boots certainly are a non-metallic solution that might feature protection materials like ​carbon fiber, plastic, or fiberglass. Composite boots might be advantageous on work sites where metal detectors are in use, or in predicaments where electrical protection is vital. Workwear made for that way you move. http://ezproxy.cityu.edu.hk/login?url=https://en.wikipedia.org/wiki/Comfort