Osprey Packs Women's Raven 10 Hydration Pack The front panel floating top pocket with a side zippered organizer pocket provides extra volume and organization when needed Side compression straps stabilize loads while lower, cross functional compression straps also serve as external gear carry straps Osprey's lid lock attachment easily and securely carries bicycle helmets The blinker light attachment found near the base of the front panel of the pack allows for Quick light attachment for high visibility in the dark A removable roll-out tool pouch is integrated into its own zippered lower pocket for Quick access. It provides tool organization for bike essentials