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Granite Gear incorporated key elements of its award-winning Ozone pack to create the Nimbus Trace Backpack. In addition to more exterior storage and a removable top lid, the Nimbus Trace incorporates the 3D TopoFlex internal frame, which offers great freedom of movement along with a more precise fit and continuous support. Carrying a 50-pound load on a three-day backcountry jaunt never felt so good.

  • Advection back panel conforms to the shape of your back while allowing cool air to circulate
  • Linelock side compression straps let you easily and quickly cinch a partially empty pack to your back for greater stability and comfort
  • Tool loops help get your gear up and out of the way
  • Two stretch side zip pockets, two stretch side drop-in pockets, and a massive front stretch pocket give you plenty of places to stash items you want easy access to
  • Floating pack lid comes off to save weight or to be used as a lumbar daypack
  • Hydration sleeve with a tube port allows on-the-go hydration
  • See size chart for measurement information; torso length can be further adjusted in small increments for a custom fit

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Here's what others have to say...


Very comfy

  • Gender:Male
  • Familiarity:I've used it several times

Simply put, this is the most comfortable pack I've ever owned. It fits great, allows for maneuvering around boulders and trees, and ventilates well.

I really like the new storage pockets on the outside. I tend to use the long skinny one down the middle for my rain gear.

The new kevlar strings for compression straps have their pros and cons. The downfall is that one of the ends popped off. I could see how this would bug me. I just don't like anything falling off my pack. Not a biggy though, you can just tie off the end and move on.

There are definitely a few features which I miss having on a pack, that the Trace does not. Sleeping pad straps at the bottom, waste belt pockets, and mid-section access. Without these equals reduced weight, of course, but we all have to decide what are needs/wants are when choosing the right pack.

2 liter MSR bladder in hydration sleeve

2 liter MSR bladder in hydration sleeve

Dimensions approximately 15"x10". Very large hydration compartment that zips closed. It is a very slim compartment though and may be difficult to fit a completely full bladder.

Outer (front) stretch pocket

Outer (front) stretch pocket

As you can see, the fabric is very stretchy. I used 2 32oz bottles for example.

Do to the new linelock compression straps that go across this pocket, I am no longer able to strap my z-rest here vertically. On the Nimbus Ozone and the Vapor Flash, this was the perfect place for attaching it. The linelocks apparently cannot be quickly removed and re-attached easily.

Can't you put longer length para cord in there in order to strap in the pad on the front? On my nimbus ozone and vapor trail I always carried it that way.

Genius! i don't know why i didn't think of this.. but yes you can. I have the same size parachute cord and i'm going to swap this out for my next outing. Wish i woudl have seen this a year ago when you asked...



Walked around a little with 20lbs in the pack. Initial reaction - phenomenal. I can't pass judgement yet as it hasn't made it on the trail,, but I have confidence this will be the most comfortable pack I've owned.

Side visual 2

Side visual 2

Example of z-rest strapped on top. Noted that you can't store as much stuff in the top lid if you use a full size z-rest.

With lid removed

With lid removed

Lid removed to shed a few ounces or for storing more gear in top extension if needed.

Hi, does the 3800 cubic inches include the collar extended to the top, r not? Also, it appears that when the collar is extended, the lid tilts forward, and it looks like it would interfere with your head. Is that the case?

I'm looking to upgrade from the deter 40+10, but im not sure how much bigger this really is.

It is my understanding that the 3800 is the full capacity, as shown in this picture.

When the collar is extended, you can adjust it so that it doesn't interfere with or bump your head.

3800cu in is perfect for 1-3 nights. You can always do 4 or 5 if you are sharing the load with another backpacker.

On the GG page it states that the total volume includes the lid and the main compartment of the pack, not including the extension collar. I know I am a little late, but figured I'd throw that out there in case anyone was looking...

Size visual 1

Size visual 1

26" Life-Link shovel stuffed in outer stretch pocket.

11oz fuel bottle in upper side stretch pocket. These pockets would be great for stuffing rain gear, cliff bars, camera. Also a great place to store misc. items if you decide to leave the top floating compartment behind.

Lower stretch pocket fits 32oz/1L water bottles with ease.



From the pictures online, I thought this pack had sections of black based on the pictures. Here's the Trace I just received in the mail with a black jacket strapped to it so you can see the difference. It's actually a dark grayish/blue color. Looks a little different under different lights, really plays tricks on the eyes... either way, it's AWESOME