Height : 8” / 20.4 cm Waterproof tear resistant basillistic nylon and Chemtech upper with sealed seams. Composite toe protector and puncture-resistant insole. Ventilated and anti-perspirant padded mesh with antimicrobial treatment to control odors. Waterproof and breathable Sympatex membrane resistant to various pathogens. Removable Instant Comfort insole made of gel, PU and memory foam. 90° heel angle. PU scuff resistant bumper toe increasing wear protection. Dual density Vibram TC4 outsole made of natural rubber and comfortable lightweight PU core. Padded tongue and collar for added comfort. Polymer eyelets. Polycarbonate shank.