Review on FITLY Soft Flask - 12 Oz (350 Ml) - Shrink As You Drink Soft Water Bottle For Hydration Pack - Folding Water Bottle Ideal For Running, Hiking, Cycling, Climbing & Rigorous Activity (FLASK350) by Rich Ferguson

I love this product, the 150ml is the perfect size to thow in my pocket for those hour+ runs. The bottle material is good and i love that it collapses.There are some downsides and ways this could be made better. After about three months one of them developed a slit in the mouth piece, probably because you have to bite to get water, and now it will slowly leak in my pocket. If this was made a little more durable, that would be great. But i probably won't get anymore because i don't see longevity, I'll look for somthing else. It's also a littlw hard to clean the mouthpiece.One other improvement that could be made, and would probably cause me to exclusively use this bottle is all sizes, is compatibility with standard water bottle threading, so i could use my Saywer Water filter with it. It would probably be the perfect bottle at that point.