Height : 4.75”/12 cm PU coated nylon upper. Composite toe protector and puncture-resistant insole. Breathable mesh lining with antimicrobial treatment. Removable Instant Comfort insole made,of gel, PU and memory foam. PU scuff resistant bumper toe increasing wear protection. Dual density outsole made of TC4+ natural rubber and comfortable lightweight EVA core. Padded tongue and collar allowing extra comfort.