Review on BPA & PVC Free Camping Hydration Reservoir Bag - HydraPak Seeker Collapsible Water Storage by Robert Mulrooney

I purchased this bag to go with a Katadyn Befree filter and this combination is my favorite water filter system I've ever used. Very simple to fill the collapsible HydraPak with water from a creek, screw on the filter and squeeze water through the filter into a water bottle. Quick and simple!I found this bag to be durable, no concern about breaking it with repeated use, and it doesn't feel fragile in any way. I need to include that my use has been in warm summer months; I have no experience with it in cold winter temperatures.