Breathable and moisturewicking lining with anti-microbial treatment for odour control Non-marking TPU compound and versatile lug design grips surfaces from slick floors to uneven terrain TPU-wrapped midsole delivers maximum energy return while resisting rips, abrasions and scuffs Anti-Fatigue Technology polyurethane footbed for shock absorption and energy return S3 SRC ESD Reaxion Mid Composite S3 Safety Boot Black/Orange