KEEN Utility Men's Dover 6 Inch WP Carbon ToeStay safe and energized at the job site with these Dover work boots ASTM rated left and right asymmetrical, non metallic carbon fiber toes offer unobtrusive fit and are 15% lighter than steel Leather upper sourced from an LWG Certified Tannery treated with KEEN. DRY waterproof, breathable membrane Supportive TPU midfoot shank 90 degree heel provides stability and helps catch or lock the foot in place KONNECTFIT heel capture system for a locked in feel