The best 1800 cu. in. Pack
This is without a doubt the most comfortable pack in this size. Nice padding in the lower back area and hip waist belt along with an excellent design in the air suspension. The 2011 model adds a few design changes, one nice addition is the inside zippered mesh pocket. My Osprey Hydroform bladder works great and the Osprey Sternum Strap magnet accessory fits perfect.
I tried the Osprey Kestrel 28 and really wanted to like it as I have their Raptor 6 pack and love it for Mountain Bike riding but the 28 just was not comfortable compared to the Z30.
I'm 5' 10" tall and the Medium fits perfect. I called Gregory and they said they quit making this pack in the small size. I had the Z30 2008 model in the small and there is only 3/4" difference in the frame between the two sizes.