Osprey Raven 10 Hydration Backpack with Reservoir - Women's Mountain Biking - Hydration (Black)When youre out for an all day ride or when your ride unexpectedly turns into an all dayer you need a pack that carries everything without weighing you down. The womens specific Raven 10 is stable, comfortable, and specifically designed with mountain bike challenges in mind. You want a pack that doesnt bounce all over the place, and so do we. So, we made one. The shoulder straps on this pack are shaped like wings and naturally curve when you resume