Ice Moon Penguin Waterproof Dry Backpack for Men - Travel Backpacks - Water Resistant 500 PVS Material Black Color Apply for Outdoor Traveling and Urban Style - Hiking Camping and Day Walk

I had been looking for a backpack for my own kids and as an elementary school teacher; I started to notice my students wearing these Airbac backpacks. My students showed me how the bag worked and I was impressed. This bag really takes the load off of your shoulders. Most of the students walk around our hallways looking like little hunchbacks due to their heavy bags and I didn't want my own kids to do the same. After doing some research of reviews, I asked the kids in my class if they had any problems with the air bladder. Most had been using their bags for over 8 months and none of them had any issues so I purchased one. This is a solid, well made bag and my kids seem to love the designs.

it is a perfect backpack the air system is amazing . My kids will benefit the most .