>>1558068The rubber gasses out eventually, and during/after a long hike you're too grateful for it to taste it.
>>1558014Pic related. I've had this one ten years, it still works. Just wash it out with soap and hot water and let it air out after use, like you would anything else. Not as much of a pain to clean or use as a camelbak or anything with a dumb sipping hose.
