No wet back
I tried this pack on in the backcountry warehouse just because I thought it looked cool, but after I was forced to bring out the plastic it was mine. It is super comfortable, light weight, and the perfect bag for summer as the mesh/foam backing has a breathable material that keeps the weight of the bag directly off your back. Therefore, it is the only breathable bag of its kind I have ever seen.
and see for yourself, but if you get hot while hiking look into this pack. pretty cool for sure.