Durable, waterproof polishable leather upper with ripstop nylon and Danner Dry waterproof protection Semi-locking YKK Side-Zip PerfX PU footbed offers lightweight cushioning, lasting durability and breathability Danner Instinct slip-resistant rubber outsole with pentagonal lugs offers stability and superior traction Instinct series features a Danner Dry waterproof liner, which has been tested for body fluid borne pathogen resistance and meets or exceeds ASTM F1671-18 standards