Osprey Sylva 12 with Reservoir

From Ascent Outdoors

This highly ventilated and lightweight women&&';;s-specific pack is just the right size for carrying everything you need for an all-day ride. A BioStretch harness offers superior stability in the form of winged shoulder straps that curve just as you do when you&&';;re reaching for your handlebars. When things get steamy a breathable 3D AirSpeed tensioned mesh backpanel means you&&';;ll feel the wind coming down your back. Front and side pockets make organizing smaller items easy a LidLock attachment point secures your helmet to your pack and a removable raincover keeps everything dry should the skies open up on you.