Small - but perfectly formed. The BOOMER 18 day pack has an exceptionally clean design and is hermetically sealed to prevent water and dust ingress.
So it's entirely up to you whether you take it with you to the wettest places on the planet or the driest. This day pack is part of our HERMETIC series, designed for people who require their kit to meet the most exacting standards. It is made of a special cotton laminate that's not only extremely robust but totally waterproof and dustproof as well. So the contents are better protected than they would be with a standard backpack rain cover.
We've kept the number of seams to a minimum and every one is tape sealed. The main compartment has a watertight, dustproof roll-top closure, and the small inner compartment is equipped with a waterproof zip. And in case you were wondering, the BOOMER 18 also makes a great everyday pack.