Features of the Danner Men's Resurgent Tactical 8 Inch Boot Leather and perspair Upper provides superior abrasion-resistance and durability in a lightweight construction Danner dry waterproof protection Danner dry liner has been tested for body fluid borne pathogen resistance and meets or exceeds ASTM F1671-18 standards Polishable toe Low-Density PU Footbed offers lightweight cushioning and lasting durability Resurge low-Density EVA Midsole provides superior rebound and energy return with minimal weight Exclusive vibram resurgent slip-resistant Outsole Features large pentagonal lugs for stability in varying conditions.