WACOOL 3L 3Liter 100oz BPA Free EVA Hydration Pack Bladder, Leak-Proof Water Reservoir

The item is well made and the materials are of excellent quality. First of all the seams are well made and can hold up to the stresses of hiking and biking. The top slides off to allow for easy access and drying.The top holds up well and will NOT slide off while using, and will not leak. I like the insulated hose because it does not condensate which is a big plus because of dusty conditions that sometimes occur during hiking or biking. The attachment mechanism is simple and holds well. The water will not leak out when the hose is removed, it will only come out when the hose is attached. The bite mechanism works well and the hose lock works fine.Recently took it on a 10 mile hike and put in cold fridge water at around 8 AM. The water was cold ALL day even at 8PM when I was back home. Functioned well and there was no after taste. (NOTE): rinse the bladder with a 7% saline solution and some warm water. This will remove any chemical taste.NOTE TO MANUFACTURER: Please fix the dust cap (cap that covers the drinking region) it keeps coming off and does not stay clicked into place. I went on a 10 mile hike and it got dusty at times, my cap came off and dust was all over the drinking part. I would recommend harder plastic cap that clicks in and stays in rather than the softer cap.Edit: 03/2020Works great to this day and I’m afraid this is the only water bladder I will ever need for the foreseeable future. It’s in the same condition as day 1. Bottom line is that it is of great quality and if you rinse it out after use and line dry it, it will take care of you. So far it has been on multiple hiking trips and never let me down. 3L is a wonderful capacity and should be enough for most hikes. Max hike I did was roughly 20 miles in the summer and 3 L was enough. (I’d carry a filter just incase). Overall very happy with the product.

This is a great bladder. I have used it about 5 times now and it works as expected without any leaks. It is really easy to fill because it has a plastic handle around the opening where the water goes in, which keeps the bladder stable while you are filling it up. The bladder also really easy to clean. All you need to do is to unscrew the top and unhook the bladder entirely.I also really enjoy the quick connector of the tube from the bag. It doesn't leak at all and makes it much easier while cleaning the bag or filling up. I will buy more of these when I am back in the market. So glad I got this!

Bought it for a trek. The opening on top was very useful.

⭐⭐⭐⭐⭐ Great product! Good quality, arrived as expected, and works as described. Very happy with my purchase and would recommend!

I used this bladder for an Appalachian Trail section hike in the summer of 2016. It fit perfectly into the hydration compartment of my Kelty Coyote 80 backpack. I had no "plastic" taste, no leaks, and no malfunctions. I was concerned that the hose might disconnect or otherwise leak in my pack (and I was pretty rough with it at times), but it worked like a champ. I was able to remove it and reinsert it without emptying my pack -- I just pushed it (forced it) into the hydration sleeve (like I said, I was pretty rough with it at times).The clip-closure on the top is a MUST HAVE. It's way easier to fill (and clean & dry) with that wide opening. If you are hiking in an area with trickling water sources (or just a shallow puddle fed by a trickle), this thing is easy to fill by just opening the top flap.I cut my tube and inserted a Sawyer Mini filter "in line". My buddy was filtering water into hydration bottles. He wasted a lot of time filtering a each water stop, and it was much harder for him to "drink on the go". This one also has an insulation sleeve, though I'm not sure it did a lot to help keep my water cool(er).The only issue I encountered was with the push-on / push-off "shutoff" on the bite valve. If I pulled too hard to open the safety value, the end would pull off entirely. It easily snapped back on, so it wasn't a big deal for me. I just learned to be a little more careful opening the shutoff (or just leave it open since very little water drips from the bite value when you aren't biting down on it).This was a great product at a great price.