ALPHA CONSTRUCTIONBuilt with hand-laid premium, natural rubber over insulating neoprene for durability, flexibility and complete waterproof protection. 1600G THINSULATE ULTRAHigh-performance insulation that keeps you warm in the snow and rain without weighing you down. GORE OPTIFADE MARSHComplete your Sitka® Gear system with the only boots to use GORE™ OPTIFADE™ Concealment. This pattern is designed around avian vision instead of human eyesight, preventing prey from ever recognizing you as a predator. The Marsh pattern is optimized to perform in the high contrast environment of waterfowl hunting. COMFORT LINERQuick drying and moisture wicking, our jersey knit liner will keep your feet dry and comfortable. ACTIVE FITWith a comfortable, secure fit to keep your foot in place while on the move, boots with Active Fit also go on and come off with ease. NEOPRENE GUSSETDurable, neoprene gusset accommodates different calf sizes and makes it easy to slide the boot on and off. BURLY PRO OUTSOLEOur unique tread pattern gives you the traction to move through demanding terrain while chamfered edges keep you fast on your feet by shedding the mud and muck.