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Granite Gear Round Rock Solid Compression Sack

$26.95 - $40.95

Select Style & Size

  • Assorted, 9L
  • Assorted, 11L
  • Assorted, 16L
  • Assorted, 22L
  • Assorted, 31L
  • Assorted, 50L

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Round Rock Solid Compression Sack

On your next expedition or weekend backpacking trip, maximize the space in your pack when you use the Granite Gear Round Rock Solid Compression Sack to shrink your sleeping bag or heavy jacket. With a full range of sizes to choose from, you can stuff everything from your base-camp tent to a bulky fleece pullover in one of the assorted color sacks. Put your gear in the lightweight sack, secure the lid, and tighten the slide-lock compression straps for a solid fit that doesn’t bulge. Tough nylon lasts a lifetime of abusive outdoor adventures.
  • Make your next camping trip a little easier with this stuff sack
  • Compression straps let you pack effieciently
  • Drawcord closure offer quick, secure handling
  • Item #GRG0085

nylon (210D)
[9L] 550cu in, [11L] 675cu in, [16L] 975cu in, [22L] 1400cu in, [31L] 1900cu in, [50L] 3050cu in
[9L] 6.5 x 15in, [11L] 7.5 x 17in, [16L] 8..5 x 19in, [22L] 10 x 20.5in, [31L] 11 x 22in, [50L] 13 x 24in
Claimed Weight
[9L] 3.8oz, [11L] 4.8oz, [16L] 5.1oz, [22L] 6.1oz, [31L] 6.9oz, [50L] 8.5oz
Recommended Use
compressing sleeping bags, tents, jackets, or other gear
Manufacturer Warranty

Tech Specs

What do you think about this product?


>Rating: 5

Super Stuffer

I've used it once or twice and have initial impressions

It did exactly what I hoped it would. I put our double sleeping bag into it and saved a ton of room for car camping. I've also learned through experience that a compression bag can help keep stuff dry if submerged.

Which size did you buy for a double bag?

>Rating: 5


I've put it through the wringer

Great product for condensing sleeping bags and clothing when going backcpacking! Buy several sizes. I wish they would design a flat square or rectangular one shirts.

>Rating: 5

I need more of these!

This compression sack fits my down sleeping bag inside it perfectly, and then compresses it so it fits very nicely within my backpack.

>Rating: 5

Canoe outfitting

I've used it once or twice and have initial impressions

Just received a 16L and a 22L compression sack. Quality looks good and they pack much smaller than the sacks i have been using. Bought 2 sizes as suggested. 16 fits my 0 degree down bag nicely and the 22 stuffs my Marmot Limelite. Saved a lot of space in my pack which is more important than weight to me.

>Rating: 5

Gotta Have Em

I've used it several times

These things are bomber. I got the 16 L for my zero degree down bag and the 11L for my tent and I have not regretted it one bit. Money well spent and tons of space saved in my pack!

>Rating: 5

Sleeping Bag Compression

I've used it once or twice and have initial impressions
True to size

I bought this for my Marmot Tretsies 15W sleeping bag, and it works pretty well! The 22L has enough extra room I can get my puffy and liner in before compressing, which was my motivation for getting an extra sack. I cannot wait to take this out on my next backpacking trip!

>Rating: 5

Perfect for my sleeping bag

I've put it through the wringer

I bought the 16l to compress my Marmot Ouray 0. I can pack it down pretty well. It's definitely a must-have. The stuff sacks that come with sleeping bags are worthless!

>Rating: 5

You can never have too many

You can never have too many compression sacks. They always come in handy some how!

>Rating: 5

Works Well

Did exactly what we needed it to do. Easy to uses and seems pretty durable. We'll be getting a lot of use out of this.

>Rating: 5

Great Stuff Sacks

I've put it through the wringer

I've had one of these for over 12 years and it still looks about brand new. I recently dug it out of my storage area where it's been compressing a sleeping bag for about 7 years without a break. When the time came to get some more compression sacks I orders a bunch more of these. They are pretty light, but not ultra light. I would say they are very tough and durable however. I'll tell you about compressing synthetics in them...The small (11L) fits a large Gortex Bivy, The medium (16L) fits a 40 degree synthetic bag well. The large (22L) fits a 20 degree synthetic bag well. All are pictured next to a 1L Nalgene for reference.

>Rating: 5

Does what it says

I've put it through the wringer

Exactly what I wanted. Compresses my sleeping bag and holds it there. I usually compress it as far as I can. It has held up for 3 years. .no complains.

>Rating: 5

great stuff sack

I've used it several times

Durable, easy to manipulate the size, and holds my sleeping bag well. I could use a few more for my clothes, etc.

>Rating: 4

Awesome Compression Sack

I've put it through the wringer

This thing is great! I've had it for a few years ago... use it primarily for compressing my old school Campmor 20º down bag. The XS is perfect for this, getting it down to a package only a bit taller then a Nalgene (is that an international unit yet?), though it is obviously a bit thicker then the Nalgene. My friends are often blown away when I pull a full sleeping bag out of such a small bag. Super durable as well, I crank it all the way down, and it is yet to show any real signs of wear. Wish it was waterproof, but I guess you can't have everything.

>Rating: 5

Tough Stuff

So far, this is the sturdiest stuff sack I've been able to find. I hope to get many years of use from it.

>Rating: 5

Great sack!

I haven't gotten a chance to "get out" with these sacks but since I got them a few weeks ago, I have stuffed and compressed everything imaginable. They seem very strong and well put together, you can reef of them and not worry about tearing something. All in all, I'll be buying more. I was also able to get my Mountain Hardwear Lightpath 3 (body, fly, footprint) in this thing and squish it down to nothing. In the picture is the XL with 3 sleeping bags.. Sierra Designs Arrow Rock 30, and 2 SD Big Dog 35's. It took some effort but I think it did a great job.

>Rating: 4


These are like little miracles. I am traveling with my pack as my luggage on two weeks in Central America and it is amazing HOW much room I have saved with these packs I even have room to spare. Though they are difficult and/or darn near impossible to compress to a 1/3 of the size of their original size, packed, they still compress easily to 1/2 of the size.


Using the GG Compression Sack for my wifes SD Down bag

>Rating: 4

Does the job

It seems pretty sturdy. I got a 16L to store my 10 year old synthetic bag that is neither light nor small/compressible. It goes in extremely tight and with compression I thought maybe I would pop the seems but its holding just fine. Compression in that one only goes down perhaps 1/4 but that obviously depends on the bag. Id buy one again. Great price, decent product

>Rating: 4

Densify your body tortilla

This is a must for anyone lookin to pack their sleeping bag in the smallest nook of their pack. I have the M 11L and it's perfect for a 650 down Regular size sleeping bag. I'm naturally tough on gear and after cranking down on these compression straps and pounding this thing into the small voids of my pack, its still beggin for more

>Rating: 5

Stuff It

Great stuffer. I can fit a weeks worth of clothes into the large bag and have plenty of room for other gear in my pack. Rugged material too, and makes a good pillow in camp!


I have a Kelty Chinook 20 degree sleeping bag, regular size. I have a stuff sack that is 10X20 in but would like a compression sack. Can someone recommend which size to get?


I have a Latitude Slumberjack 100% polyester 0 degree sleeping bag. The size is long and its dimensions are 68in by 86 in. Insulation is also slumberloft. I was wondering what size stuff sack would be great for only stuffing this sleeping bag? Thanks!


How do I determine which compression bag I need from the liter listing??? The other Granite bags I have have a small tab indicating 'M' or 'L' on them. I need a couple black 'XL' for bed rolls and don't know how many liters an 'XL' would be ?????

Sheldon, For the other Granite Gear bags you had, do you know what model they are? Unfortunately this bag isn't sized from a S-XL just in liters. Do you know the names and sizes/overall dimensions of the bed rolls you're needing a compression bag for? Shoot me an email anytime you have questions! Jared D. Expert Gearhead 801.736.4336


so it looks like I would get 6 bags and could they be 16L ?


What size sack do I need for a ?

Hey MSinMS, Go with the 16 Liter size.


What size compression sack should I use...

What size compression sack should I use for my Big Agnes Beeler Gulch 5 degree bag? It is a synthetic bag. It also a traditional bag. Not the big Agnes sleep system type of bag with the pad sleeve.

On this page I see a default stuff size for that bag of 21" x 10" Generally speaking, you should buy a compression bag that matches the default stuff size of your sleeping bag. In this case, that would be a 22L sack.


What size compression bag for a Marmot CWM...

What size compression bag for a Marmot CWM MemBrain 800 Fill Down sleeping bag (Long). I tried a 35L sack but it was a long hard wrestle! Is 50L too much?

Jim, While a 45L stuff sack would probably work for you, the 50 in a Granite Gear Round Rock Solid Compression Sack could be great too. The Round Rock Solid sacks have a compressing lid that will allow you to compress the contents down no matter whether it is a tight or loose fit (within reason). The versatility of these bags is their greatest feature, because as long as you are within a decent range, you can use the compression lid to size down the load.


Compression Sack Size for following...

Compression Sack Size for following specs: MARMOT 20*F Sorcerer ?Sleeping bag shape: Mummy ?Sleeping bag style: Synthetic ?Insulation: Polyester fiber batting ?Temp rating: 11-20 degrees ?Shell material: Polyester ?Lining material: Polyester ?Girth (shoulder/hip/foot): 60/57/39" ?Fits to: 5'6" ?Length: 75" ?Stuff size: 14x8-1/2" ?Weight: 3 lb. 2 oz.

Hey, That's a wealth of information, but I'm showing the stuff size for the Sorcerer at 18x8.5", so let's use that to start. That would put you in a 16L Rock Solid. The rule is to get as close to the original stuff size for the bag as possible, then, especially with synthetic fills, consider more compression as a gift. Too small to begin with, and stuffing your bag becomes a constant drag.


I have a sleeping bag with dimensions 38"...

I have a sleeping bag with dimensions 38" X 81". What size compression sack would i need to fit it. Thanks

Hey Lawrence, We unfortunately need a little more information than the unrolled dimensions to get a real clue on what size stuff sack you need for your sleeping bag. What we really need to know is the stuff size of your bag. Most likely you are going to want the 9L or 11L bag but that's really going to depend on a lot of factors like whether you bag is down or synthetic. Is your bag a 30 degree bag? Or is it a sub-zero bag? If its down, whats the fill power? If you could let us know the make and model of your bag we could probably narrow that down for you and let you know exactly what compression bag to get.


I am looking for a compression sack for a...

I am looking for a compression sack for a sleeping I just purchased that I will be taking with me on a trek into the Himalayas this coming fall. I am not sure what size of a compression sack I would need. Some information about the sleeping bag I just purchased is as follows: Packed volume 10.1 L Length 168 cm Fill = 575 fill-power duck down + Hyperloft Eco Does this mean I would need an 11 L Granite Gear Round Rock Solid Compression Sack? Any information you could share with me would be great. Thanks! Charlene

Hey Charlene, The average stuff-sack that comes with most sleeping bags is right in the ballpark of 7 x 17 inches. You could probably get away with going with the 9L compression sack but I think you are probably right, the 11L will probably work best for your bag.

Hey too Charlene, Rule of thumb: start with the stuff sack size that comes with your bag to get your compression sack sizing. So with a 10.1L, yes, you'll want the 11L Rock Solid. Great comp sacks...a real staple around here. Hope this helps.


the 9L and 11L are 15in and 17in respectively....

the 9L and 11L are 15in and 17in respectively. But how small do they actually compress? What is the size you can get them down too?

That's subjective and depends on what it is you're trying to compress, ie: down, synthetic bag, tent, heavy clothing, wool socks... Rule of thumb though: if the gear in it cooperates in some perfect world scenario, plan on having a cylindrical wad about 1/3 the size you started with.


What size would be good for the marmot...

What size would be good for the marmot limelight 2p tent (body, footprint, fly)? The packed dimensions of the tent is 7x21, so minus the poles I dont know what size compression sack to use.

The Medium on this one,too. aka 16L, aka the red one on its side in the picture. As much as you might want to go smaller, this one will be less of a fight, and you'll run out of compressabilty on the tent before you run out of strap to compress it with.


was asked to get a 15 lb compression bag....

was asked to get a 15 lb compression bag. Yours are listed as 11L, 16L, etc. Does the L equal Lb? If not, which is closest to 15 Lb. He already has a 20 Lb bag

The L stands for Liters - how much it will hold. You typically want to size bags by volume, not weight. I'd recommend checking the dimensions in the tech specs box (above and on the left of the page) to figure out what size you'd want.


So I need a way to pack 3-5 days of clothes...

So I need a way to pack 3-5 days of clothes and make it as small as possible. Can these bags work on clothes? If so what size should i be looking for to pack that amount of clothing?

Oh man are they ever great for clothes! Depending on how you're going to load your pack, you can compress it down into a tight bundle, or just use it to keep everything together, but still stuff the nooks and crannies. For what you need, I would go with the large. These comp sacks are fantastic. You'll be hooked the first time you use it.

Yeah, they'll work for clothes. Depends on what type of clothes you have for sizing. If it is mostly down and highly compressible stuff then you might be able to get away with a medium, otherwise go with the large.


How do these Granite Gear sacks deal with...

How do these Granite Gear sacks deal with wet conditions? Are they waterproof at all?

I wouldn't recommend using them for a canoeing or rafting trip down the river like a dry sack, but they will work fine in any other damp or humid environments. They are water resistant not waterproof.

To add to that, the material used in the Granite Gear Round Rock Solid Compression Sacks is waterproof (PU coating), but the seams are not. They are taped (not the same taping as in a waterproof jacket) which helps them from fraying and allows them to be more water resistant. However with prolonged water exposure, the seams will draw in moisture. Granite Gear does offer a more waterproof compression sack that is fully seam taped (waterproof taping). These are the Granite Gear EVent Compression Dry Sacks. These are significantly more waterproof and feature a roll-down closure, eVent material on the bottom of the sack to allow for purging of the air, and every seam is taped for maximum waterproofness. I would recommend using these if going on a trip that will likely involve large amounts of water exposure.


apparently i haven't used a compression...

apparently i haven't used a compression stuff sack in awhile and my old granite gear sack isn't fitting my bag no matter what i do to it (size M). so wondering if any gear-heads out there have suggestions on what size to buy for my kelty serrano 0 degree synthetic bag. any help would be fabulous!

If the medium doesn't work, try using a large. This will also give you a bit of extra room for compressing a few other items.

Do you really need a gear head to answer this??? If a Medium is too small; get the next size bigger!


how do I know which size to get if I already...

how do I know which size to get if I already have my sleeping bag?

That will depend entirely on the size and type of your sleeping bag. I would use the following guidelines. Medium (16L): Synthetic mummy bag rated from 15 to 25 degrees. Down mummy bag rated around 0 degrees. Small (11L) : Synthetic 40 degree bags, Down 15 to 25 degree bags. Large: Synthetic 0 degree mummy bags; **Note, This should help get you into the right range, but remember things like whether you have the short, regular, or long version of your bag will also play into the equation. I have both a small and medium version of this compression sack and they have been able to cover all of my needs thus far. Remember Back country has a great return policy if you end up having to re-order.

Just adding to what's been previously stated, the type of sleeping bag you currently have dictates what size compression stuff sack you will need. Use the stuff sack that came with your bag as a guide.


What size would be good for a Alps...

What size would be good for a Alps Mountaineering Mystique 2 person tent?

You can use the XS or the Small. I use the XS for my Big Agnes Seedhouse SL2 and it's an easy fit. Ends up a bit bigger than a 1L Nalgene bottle on the height, and maybe twice diameter or so.


Traveling to Haiti with a medical group....

Traveling to Haiti with a medical group. Carrying on a small (kids!) sleeping bag. Would a compression sac make it even smaller? Thanks!

Yes, it'll make it smaller. Pretty much makes anything fabric smaller. Hope this helps!

Absolutely. I frequently compression sacks for both down and synthetic bags and I am always amazed how much smaller they pack compared to their standard stuffed or rolled up size.


Forgive me, fairly new camper. How do you...

Forgive me, fairly new camper. How do you know what size to get...looking for one for my sleeping bag.

That will depend on your sleeping bag. If you have a synthetic mummy bag rated somewhere around 20 degrees a medium (16L) should be perfect. If you have a down bag with a similar rating I am fairly confident that you can go with a small (11L). This is a picture of a womens long 20 degree 600 fill sleeping bag in a medium. You can see that I am completely compressed as far as this compression sack can go (granite gear medium 16L), meaning I probably could have fit the same bag into a small no problem.