UnigearTactical Hydration Packs Backpack 1050D with 3L Water Bladder, Thermal Insulation Pack Keeps Liquid Cool up to 4 Hours for Hiking, Cycling, Hunting and Climbing

This camel pack is insulated and the storage capacity hold about 4 bottles of water and does stay cool for about 4 hours! It doesn’t weight much at all. No leakage so far! There’s a valve that opens up the flow of water at the end of the mouth piece. Of course, the water sitting inside the tubing will be warm, but once you drink that little bit you’ll get that cool water. The function and quality of it is definitely worth the money!

Comfortable to wear. Not sure how long the water will stay cold. A little ice and the water was still cold after a 3 hour walk. The mouth peace still has a little rubber taste to it but I only got it may 3rd. Will be buying more for the family.

So I bought this to actually hold a rucking plate instead of a water bag, hear me out. It works great lol perfect size for yes4all plates (25lb specifically). Pretty comfortable for shorter rucks (3 mile range) works with my other Molle accessories and attachments. The water bag itself and the hose are super nice. Honestly one of the best tactical/molle bags I’ve bought. And it’s got room for my rucking snacks and such in the pouches!

The bladder itself is fine - haven't had any problems over the last year - through several rough uses. I use this all the time, so my complaints are from lots of uses. I still choose to use this instead of buying another one, so none of these things are deal-breakers, they are just annoyances.The push-fittings to attach the hose work well and haven't leaked. The opening is large and seals well.But, when you hold the bladder to try and add water, it always collapses, which then spills the water everywhere. When held by the opening flange, the bag should fall OPEN-mouthed. It really takes 2 hands to hold the mouth open - and then another hand to fill it (pour from a jug, turn on the faucet, etc.)The bite-valve is 3-layered - which makes this a pain to use while riding. There is a lever to open/close the waterline. If the valve is left open, then the water leaks out. If you close the valve, it almost takes two hands to open it. You can do it with one - but I find the lever is always in the wrong direction and I need to fumble with it. Then, the mouthpiece has a 45° rigid bend to it that swivels around. This is ok in the open - but when wearing a helmet (BMX, Motocross, motorcycling), it's hard to get the mouthpiece to fit, and when you get it in, it swivels flat against your face. This would be better as a formed, but soft hose. The bite valve has a snap-fit cover to keep it clean. That's hard to pull off with your teeth, and nearly impossible to put back on one-handed. It is also relatively rigid, so leaving it banging around is painful. Already said the bite-valve leaks.Now onto the bag: The bag is too long for the bladder - and the opening in the bag was OBVIOUSLY made for a different bladder. The bag takes up a LOT of volume, but the pockets don't have a lot of space in them. Something is just not right. It LOOKS great, but isn't very functional.I will say that the straps (positioning and length) is perfect. There's plenty of strap length to be used over top of an armored jacket.

Good quality, very efficient pockets and zippers. Nice water bladder with shutoff switch

Excellent craftsmanship. Works as intended. Extra room for cell phones, keys, and other small valuables. Materials very similar to military style camel backs. Zippers are big for easy grip. Has para cord for extended reach on all zippers.

Have not used it yet but it’s looks like it will work

Hiking in arid, SW summers can be brutal. With 3L of water strapped to my back, it is a lot easier. The backpack also has a fair amount of room for other stuff which came in real handy when I needed to bring supplies for my dogs on the hikes.Note to those thinking about the nice, cool sips of water you'll enjoy on hikes: the bladder is well insulated and a few ice cubes added in before a hike will keep the water cool throughout a hike. However, the line from the bladder to the mouthpiece has nowhere near that insulation. Be prepared for a warm gulp of water before getting to the colder water.