Review on AXEN Rave Hydration Pack Backpack with 2L Water Bladder - Perfect for Festivals, Raves, Hiking, Biking, Climbing, Running and More! (3 Pocket Design Included) by Tom Lantz

We used them for our two children (9 and 12 years old). Good backpack design, easy to use, comfortable, light. It is good if there is an insulated water hose. I wish the water bladder could open from the top seal for easier filling; it has a round opening with a screw cap on top. My only major complaint is the bite valve on my 12 year old's bag broke after just a week of use. Disappointing for summer hikes. Now it's slowly dripping. So I give them a point for not having a very strong bite nose.