Universal Water Bladder Insulator Bag for Osprey, Platypus and CamelBak Hydration Backpacks; 2-3L Hydration Bladder Insulation Sleeve - Interior/Exterior Mount, Hang Hole, Tube Ports

I bought this for my old Camelback 3liter bladder to both insulate it from heat and cold as well as from other stuff in my pack poking a hole in it or tearing it.I like the option to attach it externally. My pack has a shovel board option that clips on and is meant to let you lash things to it so I may put this bag between that and the main pack to make more room inside.I would recommend this!

I have a Marchway 3L hydration bladder system and was looking for a good insulating bag to put the bladder in to keep my water cool here in Florida. This insulating bag works very well! My bladder and tube fit nicely in the bag. I like the way that there are several ways to access my bladder's fill opening and tube connection as well as two ways to have the tube itself come out of the bag.The bag is a little snug in my carrier, but it does fit and the tube isn't kinked or hindered in any way.I always like to try out new products first to see if they are any good before I recommend them to friends or clients (I'm a professional photographer), and I can confidently recommend this insulating bag.

I prefer to carry a hydration bladder instead of water bottles because I can sip frequently while on the move instead of having to wrestle with water bottles in side pack pockets that are difficult to reach without removing my pack. There's always the problem of hiking in hot weather and trying to stay hydrated, as well as manage my body temperature with tepid water from a non-insulated bag. I've used this insulating bag with a 2-liter hydration bladder (not insulated), as well as an insulated 1.5-liter bladder. For one hike, I put one liter of water in the 2-liter bladder and refrigerated it overnight. In the morning, I added three, 2-inch ice cubes and topped off the bladder with water before stuffing it into the insulated bag. I hiked for a bit over 5 hours on a day with temperatures in the mid-to upper 70's on a trail that had 1500' of elevation gain. There was a noticeable difference between the temperature of the water in the tube and the water in the bladder throughout the day, and the remaining water in the bladder was still cool when I got back to the trailhead. Using this insulated bag also protects the contents of my pack from the condensation that often forms on a hydration bladder. I'm VERY happy with this product!

I have been using a different sleeve on my bladder with no issues but the new Hydrapak Contour 3 liter bladders have different dimensions than the older Hydrapak 3L bladders and my sleeve doesn’t fit the new ones. This fits the new 3L Contour bladder just fine. No issues sliding it into the sleeve when full at all.Stitching and zippers seem well made but time will tell how well they last.These serve several purposes for me. Of course they insulate and keep my liquid cool. They also protect my bladder from something puncturing it inside my backpack. They supply a secure hanging strap that doesn’t put unnecessary stress on my bladder so it stays vertical and supported properly in my backpack too.

Lo uso para senderismo y montañismo, y cumple perfectamente con su función aislante.

It fits perfectly in the hydration bladder pocket of my First Responder vest. I had to augment the vest with a reinforced hole to pass the drinking tube end-cap thru and over the shoulder to the clips in front.But, the insulator holder works perfectly. 👍🏻 If you're going to keep your beverage cold, you need one of these insulators. (No, common sense dictates you don't put hot liquids in the hydration bladder 🙄🤦‍♂️)

I bought this to add as additional insulated bag and to prevent leaks in my backpack.but it's just a well made sleeve. it doesn't keep water cold long enough. and that chilled with ice water leaves a condensatio. in 3 hours the water is just warm.

Really nice! Just make sure you have the right water bladder with the circular opening. I had an Osprey water bladder with a slide top and it was tough to get it out and back in, I didn’t have easy access. Other than that, it kept my water really cold the whole 4 hours I went out to hike