Dirt and water resistant Large main compartment Aluminum hardware and water-resistant fabrics combine to create a lightweight, durable bag. Heat-molded, crush-proof SafeZone™ compartment protects eyewear, portable electronics and other fragile gear (compartment locks and can be removed for extra cargo room) Raised rails give your bag and gear extra protection. Zippered rear panel access for quick retrieval of gear/clothing. Compression straps customize the bag to the size of your load. Breathable, air mesh backpack straps. Large gusseted side pockets separate clean-from-dirty, wet-from-dry and work-from-play.