100% waterproof yet breathable. Ultra-durable yet lightweight and athletic. Like a Marine Infantryman, DannerA(R) Tachyon Combat Boots are well-rounded, tough as nails, and ready for anything. Durable, waterproof, polishable full-grain leather upper with 500D nylon GORE-TEXA(R) 100% waterproof/breathable membrane provides sure-dry comfort without that clammy feeling Danner Tachyon slip-resistant rubber outsole featuring pentagonal lugs for superior surface contact Open-cell PU insole for optimal airflow and superior durability EVA cushioning and shock-absorbing midsole Speed lacing system and durable brass hardware for a secure fit Each Boot is approx. 8"h., 18 ozs. Order today!