Built with hardwearing reinforced PVC tarpaulin and welded seams, the Nautilus 25 is equally prepared for precipitation or summer rays. The roll-top closure allows the backpack to right-size to your contents, while sealing out the weather. Its adjustable shoulder straps offer flawless fit and comfort for the journey ahead. Specifications • 100% Waterproof Fabric • Ultrasonically Welded Waterproof Seams • Roll-Top Closure with Adjustable Straps • Dual Side Carrying Handles + Shoulder Straps • Ext