Features The Aurora is just the right size for essential gear and hydration for 2 hours in the saddle Antidote Reservoir Features: easy open/close cap, lightweight fill port, dryer arms, center baffling and low-profile design Key Pack Features: External fill, bike tool organizer pocket, reflectivity, Velvetex-lined harness Designed to carry multi-tool, pump, spare tube, keys, cards and cash CamelBak Got Your Bak Guarantee: If we build it, we'll Bak it with our lifetime guarantee Description Product Description The convenience of external fill in a sleek women's bike pack. The 2L Antidote reservoir can be refilled on the fly via the quick-release flap on the front of the pack. Two external pockets for small items like keys, phone or storage for a shed layer. Stretch elastic side panels provide for expansion; twin compression straps shrink pack down when empty. Reflective back strip with tab to click on a blinker for early morning and evening safety.