Hydration Bladder 2L Leakproof 2 Liter Water Reservoir, BPA Free Military Green Water Storage Bladder Bag with Insulated Tube, Hydration Backpack Replacement for Outdoor Hiking Camping Running Cycling

This is a quality bladder at a very reasonable price. Everything works well and there are no leaks or funny tastes. I bought this as a replacement for my Camelback Classic 70 oz. Unfortunately, this bladder is slightly wider and shorter than the old one an is therefore harder to insert into the Classic after filling to 70 oz. It also has more technology than the old one that I really don't need but is probably good for the average user: the drinking tube is insulated, the bite valve has a cover, and also the bite valve has an open/close position.

This is a 2-liter hydration bladder with insulated tube that is ideal for hiking and hydration packs and is durable and practical for keeping you hydrated during outdoor activities.

The insulated hose is not suitable for winter use. It freezes while skiing in 27 degree F temperatures

Ordered this for my boyfriend to use at Disney. This was by far the best thing we brought for the trip. Better than the collapsing water bottles!! This was awesome, I ended up ditching my water bottle and sharing with him. Stays so cold even in 100 degree Florida weather. He just slipped it in his backpack and filled it up every now and then. The tubing was long enough to use comfortably, but not obnoxiously long. We followed the directions for first time cleaning (to get rid of the plastic smell) and it worked like a charm. Some baking soda and water and let it sit for about a day or so. Never once tasted or smelled like plastic again.

Nope, sorry. It actually is a sack of water. Great product, outstanding customer service, and maybe some other stuff.