Velocity IT (1.5L or 2L Hydration Reservoir) - Insulated Water Bladder/Reservoir for Hydration Pack – Self-Sealing Bite Valve, Leak Proof and Dishwasher Safe

Keeps water pretty cool. I used this for marathon training and then the marathon. I would fill up the night before and then throw it in the fridge overnight. Water wasn’t ice cold the whole time but it was nice and cool. The first couple sips might be warm from the tube but after that it was really refreshing. I think if you add some ice it would keep the water really cold. Easy to clean. No issues with leaks. Glad I bought it.

It’s like a koozie for your hydration pack. This was a game changer purchase. I have the 1.5L and the 2L. Perfect for keeping water cold for hours with less ice.

Works well in my Solomon vest. Their hydra packs didn’t get great reviews so I looked on here. Plus this one is insulated and theirs are not. I put a small amount of ice in it to keep water cool. So far so good. Have only used a couple of times.

Good for short hikes in the heat to keep water in bladder cooler for longer. The opaque hose doesn't really provide a lot of insulation due to it's size. It does seem to be just as effective as the more common clear hoses with a neoprene sleeve at insulation, and I like it more than the sleeve as the sleeves will get caught on things and this hose doesn't do that. I have multiple packs and multiple bladders for different applications. I use this specifically for day hikes in the desert heat. I would not use this on a multi day trek. The extra weight isn't worth it if you don't have access to ice. The full slide opening is easy to open and close and allows for easy water & ice filling. Get a valve cover unless you like dirt flavored water. Would buy again.

My Nathan VaporAir came with a non-insulated bladder, which simply doesn’t cut it in the Texas heat or on day-long hikes in warm weather. I got a Nathan insulated reservoir, which was atrocious: nasty chemical taste that wouldn’t go away after many washes and soaks in baking soda; a terrible design meant to minimize sloshing (a non-existent issue if you fill your reservoir properly) but which made the reservoir very difficult to slide into the hydration vest; and a lining too rigid to pull the reservoir inside-out for cleaning. The Hydrapak bladder solves all those problems. The bladder keeps my water appropriately cool over an entire day in mild weather (although you’ll want to slide an ice pack between the bladder and your body on warm and hot days); it is fully reversible for cleaning; and I did not experience any chemical taste after the first use (I’d filled it with a baking-soda solution prior to first use as well). It pairs very well with the HydraFusion Insulated Tube, which actually kept my water much colder than the reservoir itself in mild weather (due to not being in contact with my body heat). My only wish would be for the reservoir to be slightly bigger. It hasn’t been an issue yet, but my original bladder was 1.8L, then 1.6L for the Nathan insulated bladder, and this one only 1.5L. It should be possible to design a 2L bladder that fits most hydration vests.

1.5L version has worked perfectly even in the Arizona heat, can keep ice cubes through multiple hour walks/hikes without melting. No leaks that I've seen and very easy to drop into any HydraPak compatible bag/vest

Works great and easy to clean

Just ok water reservoir. I took it to the desert and it worked as intended. However, when I took it skiing, whenever I got on the ski lift and leaned against the back of the chair, the clip for the tube would come undone at the base of the reservoir. I had to reattach it several times, and whatever water was in the tube leaked out. So it works in some circumstances, but not all. Would not recommend this product for this reason.

Efficient and Reliable Hydration Reservoir – Worth Every Penny I’ve used the 1.5L HydraPak Velocity IT just once so far, and plan to use for a 50 mile run across Snowdon, but it already impressed me. It kept my water cooler for longer than expected and operated without any fuss, very efficient. The sealing system on both the reservoir and the tube is excellent, preventing any leaks between sips. Overall, I’m very happy with this purchase and consider it well worth the investment.

Have used this on some hot running days and keeps the water cool. Take note not to chew on the mouth piece too much, just a slight bite and the water flows fine.

Usata a Luxor nella Valle dei Re e al Cairo nella Piana di Giza ha fatto il suo dovere Capienza 1,5 litri l’ho sempre riempita con 1 litro ed è stata la mossa giusta per il peso in quanto al primo bazar bastava rabboccare. Sotto il 48º di Luxor l’acqua nel tubo era tiepida ma nella sacca sempre fresca. Ottimo acquisto, la consiglio

use this for paddling sports and it's a great investment. no excess weight like metal bottles. nothing bad to say about this product

Il prezzo è giustificato dalla qualità. Sacca è tubo coibentati, il tubo si può rimuovere tramite un raccordo a innesto rapido. Incluso anche un lubrificante idoneo x alimenti per la cura del l'innesto rapido