Kerry H.wrote a review of Sea To Summit Pack Tap Water Reservoir on January 24, 2016
Familiarity: I've used it several times
I bought the 6 L blue bag; it works great. Used it over the summer 3 or 4 times and it worked flawlessly each time, no leaks. The strap comes in handy for tying to a tree. Folds up small when empty.