Reviewed by TallPaul from New Philadelphia, Ohio on Thursday, February 14, 2013
Excellent pack! I have used the Gregory Z35 for several years, and needed a slightly larger pack for extended weekend backpacking trips. Since the Z55 has the same suspension system, it was the obvious choice. I took the pack out for a long winter weekend backpacking trip, and it handled all of the winter gear I could throw at it and then some. The suspension system is top notch, and surprisingly still ventilated well while wearing a winter jacket while hiking. The side access zipper was clutch during the hike for accessing the contents of the pack. Great product.