Sea To Summit Compression Sack

Small

[XS ] 5.5 x 14 in; [S ] 7 x 16 in; [M ] 8 x 18 in; [L ] 9 x 20 in; [XL ] 10.5 x 23 in

extra small should cover it. and you will probably have some room leftover.

Coleman doesn't even offer stuffed dimensions on their site, but it looks like you're probably going to need a couple xl comp sacks to pull it off. The Montana 8 is like a portable condo.

Just get the dimensions for your tent and match it up to the compression sack dimensions on the right-hand side of the page.

I'd probably say the medium size.

I'm from the camp that believes that the best size to get is the one that gives you the original volume you started out with. It makes it easier to stuff, and then the compression is a matter of using the straps to make the package smaller and doing the work for you.

So, for your clothing @ 7x16" use at least a small. Although with clothing, I like to put mine into an oversized waterproof ultrasil stuff sack and load them flat so they take up less pack volume. For the Cat's Meow with an original stuff size that's about 7x21", you could either just get by with a medium, or, because it's a synthetic fill, and because it's what we use for our CMs, I would recommend that you use a large and just honk the straps a little more. To see what you'll potentially get when fully compressed (in a perfect world), be sure to look at the differentials between the compressed vs uncompressed volumes in the specs above.

How did the medium work for your mistral bag? I just got one, and really need it to pack smaller. The original stuff sack is huge and takes up my whole pack.

Just do large sacks for both bags- no fight to stuff them, still have enough in the straps to cranks them down as far as they'll go. With the tent,use a small sack.

its for the kelty minstral bags (synthetic)

thanks!

I recommend a medium for the regular, a large for the long. This is playing it safe since I'm unsure of the exact sleeping bags you have. Different synthetics will compress to different volumes. I used the 20deg North Face Cat's Meow for comparison.

As for the tent, I wouldn't recommend a compression sack like this. Your tent won't fold in a fashion that will be more compact using this style of sack. If you still have the original sack the tent came with, it is best to just use 2 compression straps in addition.

Should be smalls for everything. Depending on what type of jacket, maybe even an XS just for that alone. A good way to figure out what size you need in a comp sack is to figure out how bulky the items you plan to put in it are going to be. Base your original volume on that. After all, x amount of gear is x amount of uncompressed space- compression is your bonus.

If you have a regular-large Encampment, your normal stuff size is 9x20" and your max compressed size is about 10x10". If you want to fight with it every time your stuff it, try the medium. If you want it to be easy, but still get it as compressed as you're going to get it, use the large sack. I would get the large and let the straps do most of the work. Hope that helps.

You can pull off a small, but a medium will make stuffing it easier and still let you compress the bag as much as it will.

XS: 3.9 oz (110 g)
Small: 4.5 oz (128 g)
Medium: 5.5 oz (156 g)
Large: 5.5 oz (156 g)
XL: 7.6 oz (215 g)

One good way is to look at the size of the stuff sack that yours came in. Get the same or one size down. I'd recommend the 10L or even a 16L, depending on your particular bag.

If you're storing a sleeping bag, you should also consider a eVent bag, which is the same as this, but waterproof:
http://www.backcountry.com/sea-to-summit-event-compression-dry-sack

Depends on the bag. Bags meant for colder conditions have more insulation and are therefore bigger and bulkier. Looks like EMS lists the... "stuff size" on their website (under technical specs) if you can find your bag there. I'm not sure if that corresponds to the dimensions of stuff sacks listed here (I'm used to manufacturers listing the volume), but it's a good bet that it will give you an indication of what size to get.

The material used in the standard Sea to Summit Compression Sacks is polyurethane coated 210D Nylon. (Nylon by itself is not waterproof, and needs to be coated to make it so). However, not only do these bags *not* have a roll-top closure (like Sea to Summit eVent Compression Dry Sacks), they are not seam-taped either: so water can make its way through the sewn seams. (This is true of all brands of compression sacks, not just Sea to Summit products)
- If you need a basic, robust compression sack, these bags will do the job (and the lid is designed so it won't flip over and tangle, which is a nice feature)
- if you want the same degree of compression, but would like to save weight, check out the Sea to Summit UltraSil Compression Sacks (lightweight, non flip lid, but still without taped seams)
- if you want compression *and* you need to keep your gear dry, the Sea to Summit eVent Compression Sacks is the gear of choice

And if you'd like any futher explanation (honest answers, not marketing spin) shoot me an email at barry@seatosummit.com

Cheers!
Barry Robertson
Sea to Summit Customer Relations Manager

I second the recommendation for the eVent bags. I have a few for my sleeping bag and clothes and they work quite nicely. Only about $10 more than these and worth every penny:
http://www.backcountry.com/sea-to-summit-event-compression-dry-sack

Eldad, Angus is correct in the true defintion of waterproof, but the material is nylon/cordura thus the actual material is waterproof to an extent, but the top is not closed like the eVent dry sack made by Sea to Summit. So if you were to dunk this or let it sit out in a storm you might have some issues. If this is in you pack while its raining, no worries your stuff will stay dry.

No.