Dirt and water resistant Large main compartment Aluminum hardware and water-resistant fabrics combine to create a lightweight, durable bag. Durable exoskeleton and a molded polypropylene back panel absorb the impact of rugged travel. Convenient, detachable 670 cu. in. race pack with enough space to carry daily essentials. Tough, oversized wheels and Thule V-Tubing™ telescoping handles guarantee a smooth, steady and straight pull for years Heat-molded, crush-proof SafeZone compartment protects eyewear, portable electronics and other fragile gear (compartment locks and can be removed for extra cargo room) Divided main compartment keeps clean-from-dirty, wet-from-dry, and work-from-play. Organization compartment stores maps, magazines and electronics.