Diaz Sport Insulated Cooler Bag & Free Clips to Hold Drinking Tube | Fits 2L & 3L Hydration Water Bladders | Keeps Water Cold for Many Hours | Lightweight & Water Resistant | Bladder is NOT Included

Works wonders. I live in the desert of Las Vegas and used this for a 6 hour motorcycle ride in 105° heat. Used this on my 3L Camelbak and for the entire ride i had nice, cold Gatorade to drink to keep me hydrated as we rode in the heat. If this insulation bag worked to keep my liquid cold for over 6 hours in 100°+ temps then I'd say it passes my test. The additional clips for securing the hose is a nice touch and came in handy. I only wish it would zip completely close instead of velcro and just have 2 small exit holes for the hose only. As is it works but for my longer hose I had to tuck alot into the bag and kept getting blockage due to bends. That's more of my hose being too long than the bags fault but I think having dedicated exit holes would help insulation even more and help keep the hose tidy. Love the bag though, works perfectly.

This is a great basic insulation bag for hydration reservoirs. It's not particularly fitted, so the extra space does cost you a bit in effectiveness, but the lack of tailoring to any particular style of reservoir brings the price down. I paid about $20 for this insulation bag, compared to $45-$60 for more fitted alternatives. It's a good enough option for my reservoir with insulated drink tube when placed inside a day pack and surrounded with a bit of gear...even in weather below freezing. I use a pressurized Geigerrig, so I'm constantly pumping cold air into it... this is retaining enough warmth to overcome that, starting with warm but not hot water at the beginning of the day.I can't imagine going to a more expensive insulator unless I were doing multi-day treks at below freezing temperatures. For day hiking, even all-day hiking, this does the job.

I started using a hydration backpack and 3L water bladder during my skate sessions. Texas summers are brutal. I put 10-15 ice cubes in the bladder with the water. Before I used this the ice would be completely melted in an hour or so. Now it stays cold for several hours even with the heat transfer from my back through the backpack.Two issues.1. You'll need to cut small holes for the straw tube and the bladder slots that suspend the bladder to keep it vertical. Slightly annoying since this is pretty thin.2. The velcro is stitched poorly. Needle and thread can fix that but at this price point it would have been nice for a little sturdiness.Still a good product despite these issues. It does its job.

It does what it does. The manufacturing is decent and after an initial use it seemed to be good. Not convinced it can hold up to tough repeated use but so far so good. Unfortunately it won't hold two 100+ oz bags which it what I like to carry, but one fits in nicely.

Great cooler bag for my water bladder. I use it every single day in the hot florida sun and it does a pretty decent job of keeping my water cool. Some of the stitching on the top inside opening where the insulation and the velcro meets has come undone however. I can fix it but perhaps this bag isn’t as well made as it could be. Overall, I’m still very happy. It was a good price and it’s perfect for what I need.

Bought this to use on the backside of the seat on my fishing kayak with a 2 liter bladder I purchased as well. Works perfectly for the use I have for it. Keeps the bladder protected and water cool (not frosty cold....it's not heavily insulated) for several hours and that's really all I needed from it. For that alone it's worth all 5 stars.The seller sent me an email the date it arrived to let me know they want to stand behind their product and if I ever have an issue to email them. This product seems well made and sewn together well. Doubtful I'll ever need to use the warranty given my use, but it's nice to know it's available if a need arises.

At first I had my doubts , but it really is holding up to the challenge, I use it almost everyday for my EDC pack , the beach, biking, kayaking and hiking . This is able to fit into almost any hydration sleeve or camelpak , it's been keeping my water or Gatorade cooler for 2-4 hours , amazingly versatile. Great buy , would get another for a backup

I've had this for a couple months. The outside is holding up nicely, but he inside foil looking liner has completely fallen apart. I've used it maybe a couple dozen times, and it should have held up much better.