Asymmetrical Alloy safety toe - Electrical Hazard Protection - Fiberglass shank for structural support - Anti-Fatigue technology polyurethane footbed for shock - absorption and energy return - Premium full-grain leather - ExoSpineTM technology to provide lasting structure - durability and improved heel fit - Padded top collar for comfort - Dual-purpose top hardware for lacing customization - Breathable and moisture-wicking lining with anti-microbial treatment for odor control - Cement construction for flexibility - 30-Day Comfort Guarantee