Whether you&';re on an adventure or going about your daily routine, the black Katadyn BeFree AC 1.0 L water filter bottle is built for durability with a double-layer flask that is both light and tough. Features 2-stage filter delivers clean, safe and great-tasting water wherever your adventures take you With a fast flow rate of up to 2 liters per minute, the filter provides fresh water in no time Proven BeFree EZ Clean Membrane(TM) revolutionizes water filtration for outdoor enthusiasts Innovative technology allows for quick and effortless cleaning of the filter without any additional tools Simply shake or swish the filter in water to remove debris and maintain optimal performance Integrated rugged handle makes it very easy to hang your BeFree AC from your pack with a carabiner or rope, take it out from your pocket while you run or just carry it by hand Robust flip cap ensures that not a drop is spilled, no matter how tough the journey Got access to a fresh mountain stream that&';s already delicious? Just leave out the activated carbon and enjoy the pure taste Don&';t like the chlorine taste of tap water? No problem, just add the activated carbon pad and the water will taste like a fresh mountain stream