Perfect day pack.... Deuter does an excellent job keeping the pack away from your back for great air flow. I’ve done 2 strenuous hikes ( Tripyramids in N.H.... Katahdin in Maine with this pack and my back was dry on both hikes. Also pack is super comfortable, forget you even have it on at times. I’ve tried osprey backpacks and when you tighten the loader straps it wedges into my shoulder blades making it very uncomfortable, not deuter... everything about their packs are super comfortable. This back has easier zip pockets on the waist and they made the chest strap easier to move up & down. Awesome stretch pocket on the outside and very roomy in the main compartment. This pack is worth every penny for the price.