The Osprey Raptor 10 is a premium mountain bike pack with features that keep you moving on the trail. The trail may be rough but your pack will carry close thanks to Ospreys BioStretch harness and hipbelt that comfortably connect the pack to your body.The 3.0 Liter Hydraulics Reservoir reduces liquid movement for increased pack stability at high speed. The hydration sleeve is zippered for convenient refills and the hose routes over the right shoulder strap to the sternum strap where it anchors with a magnetic disk for on-the-fly access to the bite valve.The main compartment is accessible via a front zipper panel. Theres a stretch mesh front pocket for stashing a layer at the bottom of the big climb, zippered hipbelt pockets to keep a phone or other valuables secure, and a special scratch-free sunglass pocket to protect your shades. The LidLock helmet carry system gives you a place to secure your helmet when youre off the bike. If you have mechanical troubles on the trail, a roll out tool pouch provides organized access for rapid trailside repairs.Theres a blinker light attachment point and reflective patches for nighttime visibility.