Waterproof non-metallic construction, Reinforced leather with rust-resistant easy pull D-Ring eyelets provide secure fit, Oil & acid resistant Neoprene laces and stitching, Composite safety toe and Hi-Vis reflective overlay, Lightweight PU cold crack tested base flexes in extreme cold temperatures, GelFlex anti-fatigue midsole for shock absorption and rebounding, Multi-directional lug design provides snow slip resistance, Oil and acid resistant rubber outsole and electrical hazard, Form-fitting B-Tek Foam lining for comfort, Thermaplush soft, next-to-foot wicking layer for warmth and Diamond Net insulation for wind-resistant protection and Hydromax layering for improved moisture management and Hydromax layering for improved moisture management,