HydraPak 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.

Works with Nathan brand hydration pack. Keeps liquids cool!! Great product and I’m impressed! Wide opening and easy snap on/off hose are excellent features. Super upgrade from standard small round opening OEM bladder!

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

This kept my water cold much longer than the regular bladder. It fit my running vest perfectly. I wish it wasn't so expensive but it does exactly what I wanted it to. Great quality.

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.

Definitely keeps beverages cooler longer. The tubing doesn’t come with a sip cover. Also liquids trapped in tubing get warm and can travel back into the bag. If you blow in the tube to remove liquid from tubing, you’re heating the air in bag warming the liquid. Can’t tell how much is in the bag, but other than that good buy. Glad I bought it. Got the insulated vying which comes with a sip cover. The insulated tubing isn’t much better at keeping liquid in the tube cool, so I wouldn’t bother.

I went with this because the dimensions were near perfect for an old Kelty Tecate hydration pack I have; I didn't find many other options for a narrow 2l. I've had some experience with this company's bike water bottles (Polar) and assumed their bags would be good too. I was not disappointed, this bladder is far superior to the one I was using before. The simple closure at the top hasn't had any leaks. The insulation works well. The shutoff at the bite valve is easy to use with gloves. I was a little worried about the hose length because it seems to be a little short, but I've had no problem with the reach. Overall I'm happy with it. I do wish it included a dust cap, but that's my only gripe.

I picked this up to fit in my Salomon vest. I liked the idea of this one better than the Salomon brand because of its insulated properties. It fit in my vest perfectly, but the best part is it kept my water ice cold for hours. I filled it up at 0500 in the morning for a 15 mile trail race. By the start of the race at 0700 it was already 80 degrees out with 90% humidity. I drank from my Solomon flasks first, but by 1000 I was hitting the bladder. I fully expected it to be warm, especially since it was against my back through the vest. But that water was still ICE COLD after hours and being against my hot back. Couldn't be happier with the purchase. I highly recommend this bladder.

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.

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

登山にも使う予定だったが真夏のツーリングにも使えるのではないかと思って購入した。 コンビニなどで2kgの氷を買って水をそそいで走っていたが夜になってもぬるくはならずちゃんと冷たかった

Conserva muy fresco el agua