With the convenience of an external fill, women-specific design and sleek fit, the CamelBak Aurora Hydration Pack is ideal for after-work rides and shorter weekend adventures. 2 L Antidote reservoir has a quick-snap cap for easy opening and closing, a low-profile fit for more stability, and a lighter fill port to cut weight Quick Link system allows the tube to be disconnected from the reservoir for easy filling Extra-large opening makes the reservoir easy to fill and clean; hidden folding arms lock out for faster drying Women-specific fit and design Convenient external fill takes the hassle out of filling the reservoir Bike tool organizer pocket Dual compression straps help keep the load stable Reflective back strip and blinker light attachment point (blinker not included) help keep you visible in low light Brand new with sealed mouthpiece. No flaws.