Fluid™ 18 4.8 5 4 4
nice little bag Works perfect to put a hydration bladder in and I typically put my rain gear in it or extra layer maybe a few odds and ends. It stretches a lot from original size at first when I saw it i thought it might be to small. Used it on a recent fishing trip and hiked around in the river and at times bending over to cut threw thickly forested area's. I honestly would have forgot i had it on if didn't get thirsty. May 7, 2013
Bladder doesn't fit This bag is pretty good. The bladder pocket is only unsewn on the narrowish top. This makes it extremely difficult to insert a bladder. For example you can't have a jacket in the bag and insert a 2.5L Platypus with 2L water. You would have to completely unload the bag. Even when bag is empty, loading bladder is a struggle. Need some side velcro or strap or zipper so loading a bladder is possible. November 7, 2012
Exceptional function This is one of MH's larger hydration packs. It has chest and waist belts/buckles and a great deal of storage capacity. It feels like the perfect compromise between a true hydration pack and a standard daypack, without restricting movement.I am ~ 6'2" and 185 lbs. I am long-ledded/shorter torso, however the M/L fits just right. Call one of the MH's representatives to get guidance on sizing before selecting S/M or M/L.Great product! July 25, 2012
excellent bag! my third Fluid daypack and it's the perfect size for a full-day hiking trip. good dedicated hydration sleeve. not sure what the loop is for above the overload pocket? would like integrated rain cover for all daypacks. overall, a nice pack. April 16, 2012