With organization and versatility in mind, the Errant Pro represents a level of fit and features suited for the professional. The minimalist and modular approach to daily-carry is carefully considered for the attachment of multiple accessories. X-Pac® VX21 version is made of lightweight and waterproof US X-Pac fabric. 31 L expanded-capacity, compressed to 25 L Auto-compressing, adjustable flap-closure with dual magnetic buckles Large side zipper access to the main compartment Expandable side pocket fits a 0,65 L bottle or tripod Clam-shell opening is fitted with a Large #10 YKK WR zipper Interior compartments are separated by a removable panel featuring Quick Rip zipper All zipped access points are lockable Spacious top pocket with a Nywool™ padded sunglass pocket Padded Nywool™ Laptop sleeve fits up to a 17inch laptop and secured with an auto-locking buckle Tablet and Quick Stow elastic pockets Exterior Quick Access Commuter Pocket with MagDock for on-the-go organization Front stash pocket with flap closure - great for quick access to a rain shell Luggage handle pass-through on back panel Hidden RFID Safehouse passport pocket 360º reflective lash-point system to connect Boundary modular products Lower compression strap with quick release buckles LFT™ EVA foam padded harness, with upper compression and magnetic chest strap Ergonomic back panel with lumbar support, ventilation channel, and removable waist belt