are Compatible with Camelbak Hydration Pack Reservoirs

If you want to extend the life of the ice in your pack, this is a great option. It's simple, yes, neoprene and and Velcro, but simple is the best when you're interested in filling up and getting on with your day. No, it's not a an insulated cooler. But you can purchase a cooler if you want a cooler. This, however, is a simple, elegant and effective way to keep your ice around for longer. Additionally, this insulates your back against an ice-cold badder, which is uncomfortable and further melts the ice. The openings are true. The holes are where they should be. It fits well, the Velcro is good and it is well-constructed. Now, you might think the fit "seems" slightly off when inserting a dry bladder. But this is designed to hold a full bladder, and a full bladder expands when full. And when it's full it fit perfectly. Well engineered. Thank you to whoever thought of this. Great product. Camelbak should make this standard issue with the mill spec models. Recommend.

Haven’t actually seen how it performs yet but initial impression is good. Feels like good quality, the fit is perfect. I have the 3L Crux Camelbak bladder.

This is a great addition to anyone's Camelbak or any hydration bladder system one has. While my Hawg has good insulation it won't keep my water as cold as I want for as long as I need it to be. I sometimes leave my Camelbak in a vehicle all day because of work and I'm in So Cal, so it can get hot all day. After getting this insulator I used it not too long ago. I filled up my Hawg bladder with 2 trays of ice and water, put it in the insulator and then put that into my Camelbak, had it with me all day and the water stayed COLD. The only things I would change are the velcro on the back which I wish was on the top. And I wish the top corners were a little rounded instead of straight so it would be easier to zip up the Camelbak. But neither of these issues make it a bad product and I would definitely recommend this . It adds an extra layer of insulation that you need in hot weather.

Perfect fit, helps keep my drink cooler for a longer period of time..

Had to replace my bladder so I got the insulation with it. Works great in the Florida sun while walking the parks. Easily fit and put together.

It's okay. Seemed to keep by bladder warm in the negative winter temperatures of Montana. It fit into my camelback zipper pouch where the bladder hangs without too much issue. Honestly my biggest complaint is that it smells atrocious... like, really bad. Smells so strongly of chemicals. I've had it a year now and it smells just as strongly. Just a heads up on that.

2L (I think)

Fit perfect, for the 50oz. 1.5liter This is built of high quality. I don't know the exact effectiveness of the insulation properties as I haven't tested it yet but I mainly bought this to protect the bladder from being damage while inside my Maxpedition Typhoon pack. Color was a pretty good match, good fit, good seams. Arrived fast.