Ergon 12L Hydration Pack Womens Size 20"x11.5"x11" 732 cu ins Approx 12L Weighs 2.5 lbs without full reservoir Double shoulder straps Adjustable waist belt Sternum strap 3L source hydration reservoir Was $220 retail Excellent condition $150 ************ Features: Central-Flink ball joint separates shoulder straps from the backpack allowing unrestricted movement of the upper body 3 position adjustable torso heIght Load is distributed around the hips, reducing stress to the rider's back Constructed of tough 1000 denier nylon with generous pockets and tie downs One external pocket Front helmet stash strap Internal sleeve for hydration bladder Stow away rain cover