For everyday adventures, the 30 Liter Voyager Back Pack is fully waterproof with its puncture resistant PVC tarpaulin fabric and stitch-free, welded seams. The roll-down closure (we recommend rolling down three times) and side release fastenings create a watertight seal. Featuring a padded compartment and secure zippered pocket, plus two outer water bottle pockets and a clear map window, you’ll find a place to secure all your gear. Designed for effortless transportation with the padded and breathable air mesh harness system to keep you cool and comfortable, the multiple attachment points to secure the bag down and the handy benefit of removeable shoulder straps.