Hydration Bladder 2 Liter, BPA Free Water Bladder for Hiking Backpack Water Storage Bag with Insulated Tube, Hydration Backpack Replacement for Outdoor Camping Running Hiking

When I needed to replace the bladder in my child's hydration pack, I considered various possibilities. Most of them were too pricey. This one arrived in a pair and is of decent quality. These worked perfectly. The larger-mouth, detachable hose is easier to clean and refill.

Excellent product

I have had this for a year and still using the first bladder (blue one). I use primarily on the longest runs (15 miles or more) with AONIJIE Hydration Vest Backpack 5L. Impressed that no leaks developed so far. However, I do find though - and especially when I used for the first time in a marathon this month - that the flow is slower and more difficult to suck than desired, especially when I am pushing my limits already in terms of effort, breathing, etc in a marathon. So if the tube were large diameter and one could get a bigger gulp or two rather than trying to suck so many times to get quick larger sips at once, it would be ideal. Other approaches Kureida might try is to provide compression sock of sorts around the tube so that it has a small amount of pressure (so again, one doesn't have to suck as hard and the flow is there) or perhaps use larger diameter tubing. I was unable to find Kureida's contact info to provide this feedback. By the way, one key learning too: after filling but before a run, bleed out the air by turning upside down and sucking the air out. Otherwise, running with the bladder and a big pocket of air results a lot of fluid sloshing around and makes the bladder bounce around on your back. If you bleed it out first, the bladder will settle fairly quickly after .5 miles and you forget it is there. So again, harder to use when under duress but I expect to use more for extended bike rides.

These hydration bladders are amazing! They fit my Sojourner bag perfectly and have little to no taste at all. My previous hydration bladder that came with the Sojourner bag was undrinkable.I washed and checked both bags for any leakage and they were both in great condition. The screw opening is large and makes it very easy to fill with ice and my hand fits in easily to clean. I like to fill it by keeping the opening flat and, if possible, the rest of the bladder should also lay somewhat flat. I found that this way allows you to fill it as much as possible and it definitely fits 2L of water.The fact that it came as a 2-pack makes it all the more worth it. The tubes have a neoprene type layer over it for insulation, but I feel like it didn't do much in helping my water stay cool from the sun. It didn't really bother me or anything though, I just blow the water back into the bladder when I'm done taking a sip.Overall, great hydration bladders for a great price.

Seems like a quality product. Only problem is the instructions clearly said to bite and pull the mouthpiece with your teeth. I almost pulled my teeth out of my head before I realized there was now a manual switch.

I ordered this hydration pack three weeks ago, had difficulty attaching the tube to the pack, no matter how hard I pushed I couldn’t attach, I requested a replacement, and the same problem persisted. I then wrote to Kureida131 informing them of the issue, they sent me a replacement which works beautifully, just the way it supposed to! Easy clicked in!! I am extremely appreciative of the support services, they responded to my concerns and provided the best service and equipment! I only wish all of their products would work as claimed from the get go!! I like the design of wider mouth. It’s easy to clean and dry! I hope their manufacturing improves so all the products function well and nothing goes to waste.

Loved these items!! I took it to a music festival and my water tasted so fresh and didn’t even have a hint of that plastic taste that you get with other hydration bladders. It even has the two slits for the back holder in my backpack

Very satisfied with item would order again