||200 lb (90.7 kg)
in 1995 when I moved to Washington State. Since then, I have
backpacked in all seasons and conditions the Northwest has to
offer. I prefer trips on
rugged trails with plenty of elevation gain. While I continuously
strive to lighten my load, comfort and safety are most important to me.
I have finally managed to get my basic cold weather pack weight, not
including consumables, to under 30 lb (14 kg).
|Gregory Mountain Products
|Listed 1.33 kg / 2 lb 15 oz (Size L)
Measured 1.53 kg / 3 lb 6 oz (Size L)
|M (35L) L (37L)
|Storm Black *|
courtesy of Gregory Mountain Products
Gregory Z35 pack is intended to be a lightweight pack with lots of
features, and comfortable even with large loads. It is intended to
allow the wearer to “push farther and faster than ever.” It has some
very interesting features such as ventilated padding and body-hugging
form as well as dual access to the main compartment (top loading and
clamshell opening) and more. This is advertised as an update to their
popular Z line of packs.
June 9 2014
full disclosure, I had the pleasure of testing the Z25 pack in 2009. It
has been my go to day pack ever since, so I am eager to see what they
changed, and if those changes are improvements.
Before I get
into the long and tedious task of going over the pack's features I want
to comment on my initial impressions when I removed it from the
packaging. My first thought was that it looks to be a “slick”
streamlined pack. The pack has some clean lines to give it a
streamlined, finished look. Upon first look there appeared to be few
features, but as it turns out there are actually some really nice
features, they are just hidden or camouflaged. For example the pack has
dual ice axe / trekking pole attachment points, but they are not
readily visible. As I started examining the pack it seemed as if every
time I turned the pack I would find another surprise, such as the
bottom opening clamshell access to the main compartment. This makes it
difficult to know where to even start describing its features.
for features, there are many and rather than tediously going into
detail on every feature I will focus on key features that stand out
upon initial inspection or are especially significant to me, and leave
the others as well as specific details as to their usefulness,
function, and value to the field report.
Here are the features the manufacturer lists on the website:
* Updated CrossFlo Suspension
* Ventilated EVA foam on hip belt and shoulder harnesses
* Top-loading main compartment with quick-draw top closure and full-body front U-zipper access
* Floating, removable top pocket with zippered pocket and key clip
* Under-lid zippered stash pocket
* Front bucket pocket for quick gear storage
* Two external stretch water bottle pockets
* Dual quick-access waist belt pockets
* Interior hydration sleeve with hose port
* Hideaway ice axe/trekking pole loops
* Side and bottom compression straps
* Quick-attach, integrated color-matched rain cover
Materials – 210D robic dynagin, 100D robic GR shadowbox, 200D polyester
oxford, 265g polyester stretch woven and 190T nylon taffeta
feature that I found most surprising and intriguing is the bottom
opening clamshell access to the main compartment. In addition to being
a backpacker I am also a Nordic Ski Patroller. I have spent more time
than I care to think about on the side of the trail digging through a
top loading pack looking for something specific (why is it that the
thing I need always manages to work its way to the bottom of my pack
just before I need it?), it was my duties on the ski patrol that really
taught me the value of having quick and complete access to my pack
contents. It is really bad form to come upon an injury and say “WOW!
That is a lot of blood. Can you just hold your hand on there for a
while; I know I have some bandages in here someplace.” This pack has a
double zipper, each with large, robust zipper pulls, that allow me
access to the contents of one side or the other, or by opening both
almost completely expose the interior of the main compartment. This is
very similar to a feature that is on a pack that is favored by (and
specifically designed for) the ski patrol. These zippers look to be
sturdy and well built, which is good because a failure of them could
really be a problem. I think it is important note that as a back up to
these zippers is the bottom compression straps. These look like they
could take much of the strain off of the zippers and at least partially
hold the pack closed in the event a zipper should fail.
bottom of the pack are the two ice axe loops. Unlike most packs I have
had where the loops are sewn in nylon straps, these are thin bungee
cord loops. They each have a small nylon tab attached to them to make
them easier to grab. I don’t know how strong these are and if they will
stand up holding on to a pole or axe during a tumble down a snow slope,
but the compact design with minimal exposure when not in use do look
like they will reduce the chance of them snagging on brush. I wish I
could say getting snagged on brush was more of a problem for me than
tumbling down a snow/ice slope, but sadly I take more than my share of
upper ice axe attachments are also made of thin
bungee cord and in addition to the nylon tabs also have a plastic end
and a toggle that allow me to adjust the diameter of the loop. This is
similar to other packs I have. The exception is that when not in use
the Gregory's are almost flush with the pack and very unobtrusive.
pack comes with its own rain cover. I have to say a few things about
that. First is that I have always wanted a rain cover for my pack.
Second is that I tend to be cheap and just have never managed to spend
the money when, on the rare occasion when I have needed it, I have had
so much success with using just a kitchen trash bag and a bit of duct
tape (two things I always have in my pack anyway). So I am kind of
excited about finally having a pack with a rain cover. There is a small
dedicated pouch for the rain cover. It is easy to identify because the
zipper material is red and there is “raincover” printed just above it.
It is located just below the hood and under the opening to the bucket
pocket. Inside I found the rain cover clipped to a retention strap such
that the cover could be put over the pack but could not be blown away.
This retention strap is a nice feature. The cover has a grommet on the
bottom to act as a drain for any water that does get in. The one thing
I find odd is the location of the rain cover pocket. Accessing it looks
to require lifting the pack lid as well as loosing if not unclipping
the bucket pocket. Personally I think it would make more sense if it
was stored in the outer layer of the bucket pocket.
me to something else that I am not sure I fully understand. The bucket
pocket exterior is clearly two layers of material suggesting it forms
another storage space. At the bottom of the inside of the bucket pocket
is a hook and loop opening that gives access between the two layers of
the outer section of the bucket pocket. However this opening is only
accessible by reaching my arm down into the pocket. I was totally
unable to figure out the purpose of this so I contacted the
manufacturer and asked. I received a response the next business day.
And the answer? It is nothing more than access to install/replace the
ice axe loops. I think this is a miss. I would have put the opening
near the top of the bucket pocket and use that for storing the rain
cover. That way it could be accessed without opening the pack.
examining the pack, I found the “Floating, removable top pocket” must
be a mistake. The top pocket is clearly sewn into the pack and not
removable. The lid it does have two separate zippers/compartments. The
larger section, accessible from the exterior, nice for those small
items I may need access to while on the trail, and a smaller one under
the lid, nice for those small items (like car keys?) I may not
need access to but REALLY don’t want to lose. The smaller pocket
includes an attached small clip to doubly secure those oh, so precious
car keys. (It is obvious I have arrived at the trailhead and spent some
fearful moments franticly digging around for my keys while silently
praying I did not lose them?)
The pack straps and hip belt are
contoured and mostly covered with mesh material and much of the foam
padding has diamond shaped perforations to make it more breathable. It
is clear the focus was on minimizing weight while making it a
comfortable and breathable as possible. The two hip belt pockets are
shorter but deeper and wider than the Z25 I tested. These are nylon
rather than the mesh used in the previous versions of this pack. I
checked and my Garmin GPSmap60 fits, but just barely. It should easily
fit small items like a compass, energy bars, sunscreen, camera, etc.
pack gets its structure from the trampoline-style back, with the
tension necessary for the trampoline created by a loop of heavy gauge
wire. This creates an air gap between my back and the pack and as I
found with the Z25 can also be a convent spot for quickly stuffing
something like a jacket or rain shell. The pack also has 4 compression
straps, two on the bottom and two near the top. When fully tightened
they reduce the pack volume to just about nothing. With them fully
extended I was able to stuff about everything I would need for a light,
warm weather overnight trip, so I should be able to carry a wide range
of loads from the full 37 L all the way down to maybe just a hydration
bladder, potentially making this a very versatile pack.
as with most packs this has two stretchable water bottle pockets. In
keeping with the streamline theme of this pack, they each have a nylon
loop for securing my water bottle, but it is attached so that it is
inside the pocket and not visible until pulled out for use.
always do, I went over every part of the pack looking at every part,
seam, and stitch to see if there are any indications of weakness, or
possible flaws in construction. I found no imperfections.
fitting: I have learned that my torso size is normally a large or
medium depending on the manufacturer, but being as I more on the thick
side (yeah, OK…I am fat) I find that when size guides suggest I am a
medium in torso length, then the pack straps tend to be too short and
ride too high on my chest. So for this pack I ordered a size large.
When I put the pack on, empty, I found the shoulder straps to fit me
very well. I quickly adjusted the shoulder straps and hip belt to get a
good fit. I then played with the load straps on the top of the pack and
found them easy to locate and adjust. Same for the load straps on the
sides of the hip belt. I know from experience I will be adjusting these
based upon the contents of my pack, so I wanted to know in advance how
easy/difficult they are to locate and adjust while wearing the pack. As
a test I assembled the gear for a minimalist warm weather overnight
trip jut to see how much I could stuff into it and how it fit when
full. I learned a few things; my new sleeping bag stuffs down very
small, I might be able to use this for an overnight trip, when stuffed
full the fit of the pack changed very little.
I have high
expectations for Gregory products in general, and except for the few
oddities noted above, so far this pack meets or exceeds all of my
|September 23 2014
day hike with my daughter on the Umtanum Creek trail. Hot sunny day
with no wind. We hiked to the second creek (really just a trickle of
water at that point) crossing, about the only area of standing water,
shade and comfortable lunch spot, had lunch, played for a while in the
water and headed out.
- 2-day car camp/hike – 2 days of crosscut
saw training with the Pacific Crest Trail association. This was
intended to be re-certification training. For this outing I was
designated as the first aid lead so in addition to my other gear I
carried the group first aid gear. We carried 2 two-man crosscut saws,
1 one-person crosscut saw, 1 large axe, two small hand saws, a
grubbing tool, 6 wedges, and a few other assorted hand tools and
supplies. We had been told there was one good log not far up the
trail that we could use for practice, but we soon discovered more trees
had fallen since then and the outing quickly turned into a log-out
trip. The weather was unseasonably cool and we had on/off light rain
the entire time.
- Solo day hike along the Pacific Crest Trail
(PCT) starting from the White Pass Trailhead. I hiked in to check out a
few of the lakes in the area and feed some of the mosquitoes.
hike with my daughter along the Pacific Crest Trail (PCT) starting from
the White Pass Trailhead. It was a warm day, with threatening clouds
building from the west so after lunch we hurried back, stopping only
briefly at one of the lakes.
point in the testing I am kind of on the fence: Did Gregory go totally
overboard with putting everything but the kitchen sink into this pack,
or did they create a versatile, full featured pack?
I will start
by talking about the pack volume. For a day pack this time of year this
is a lot of pack. For a solo hike I can easily fit anything I would
like to carry. “Not sure if I might need [fill in the blank]? Well
might as well toss it in, plenty of room.” Which leads to the question
of what if I don’t need that much room? Well, I can say the compression
straps do an excellent job at reducing the pack volume. I have been
able to compress the pack down to the needed size with. I did find one
minor drawback to the upper side compression straps. Since these
attach to the top of the front bucket pocket, when compressed the items
in this pocket can be difficult if not impossible to access without
first releasing or at least loosening the compression straps. The flip
side to this is that this would also make it unlikely to lose even
small items from that pocket should the pack become inverted (hopefully
not while I am wearing it, but it would not be the first time).
brings me to the rain cover. I like having a rain cover but as
mentioned above the storage pocket is located inside of the front dump
pocket and the access to that is covered by the pack lid. So getting to
the rain cover requires opening the cover and loosening the compression
straps. During the crosscut saw training there was light rain and
everything was wet. During this kind of outing we hike to a fallen tree and then
drop our packs and other gear in the brush off the trail (and away from
where we will be working). It was nice to have the rain cover for this.
I could set the pack down, and not worry that it would be soaked by the
time we finished with the log. It also meant there were fewer straps
and such exposed to snag on the brush. I found the cover easy to put on
and take off. When was not using it, I just stuffed the cover into the
bucket pocket. During my later outings I used the rain cover pocket to
also hold a trash bag (I always carry a trash bag in my pack, I have
found it to have many uses and more than worth its weight).
far I really like the CrossFlo suspension. My first outing with the
pack was a hot day and I went out with testing the suspension of this
pack in mind. I carried extra gear and purposely chose the day and
location for this test. Like the other Gregory pack I tested, the
trampoline-style mesh back panel provides excellent ventilation while
avoiding any sort of pressure points either from the pack itself or
from the contents.
feature of the pack is some oversized pull loops (on the main
compartment zippers and top opening). When I saw them I thought these
would come in handy for winter use when I am wearing gloves. What I did
not expect was how much I appreciate them even in warm weather. The
pull loop on the top makes opening the top of the pack quick and easy,
and they making locating operating the zippers also easy.
found the hip belt pockets to be well situated and handy for things I
might want quick access to such as my camera and bug spray.
the testing so far I have been using 0.5L water bottles for hydration
and have found the side water bottle pockets to be easy to access,
large enough for my bottles while holding them securely.
mentioned above this is a lot of pack for me during this time of the
year. With all its features this means it is also not exactly light.
However, I have been appreciating the features and believe they may be
worth the added weight.
- Comfortable fit
- Wide load range
- Integrated rain cover
- Bottom opening U shaped access to main compartment
- Rain cover storage location
my field report, I will be posting the longterm report in about 2
months. I would like to thank the folks at Gregory Mountain Products and BackpackGearTest.org
for the opportunity to test this product.