I have a Mont Bell Ultralight Super Hugger...
I have a Mont Bell Ultralight Super Hugger #1 15 degree down bag. The stuff sack size is 7.2" X 13.4." I'm wondering what size compression sack to use as the XS is listed as 6" X 14," the S is 7" X 16," and the L is 8" X 18" in the Sea to Summit eVent Compression Dry Sack. It sounds like a great product but I'd like to know which size would best fit my sleeping bag before I buy.
The stuffed size for this bag is 7.1" X 14" so I would stick with the small 7"X16".
If you have a local outfitter take your sleeping bag into the store and test fit all the sizes to find out which one is the best. You then can go back on-line to buy it..
Willy is spot on. I have used this in a size small for my 30* Montbell Super Spiral UL #3 Down bag, and it functioned perfectly.