Lowe alpine airzone trail 35 backpack hitting the trail should be straightforward and so should the design of a pack the airzone trail nd delivers all the features you need to make it easy to pack up pick it up and go a proven single buckle top loading entry combined with an extremely breathable and comfortable airzone back system make this their most popular hiking pack off all time since life on the trail is not always so straightforward there are plenty of extras features to help carr