Mountain Hardwear Ultralamina +15 Sleeping Bag Specs
19 degrees Fahrenheit
30 degrees Fahrenheit
15 degrees Fahrenheit
-9 degrees Celsius
3 lbs. 1 oz. / 2 lbs. 14 oz.
1.39 / 1.30 kilograms
36 / 33 ounces
78 / 72 inches
64 / 62 inches
62 / 60 inches
8 x 16 inches
EN lower limit (rating for men)
EN comfort (rating for women)
Temperature rating (F)
Temperature rating (C)
Weight - metric
Sleeping bag shape
Fits up to (in.)
Shoulder girth (in.)
Hip girth (in.)
Stuff sack size
Stuff sack volume
Mountain Hardwear Ultralamina +15 Sleeping Bag
Loading Ratings & Reviews...
Rated 3.7143/5 based on 7 reviews
Rated 1out of5
by Redrocket1978fromZipper problemsI spent a long time picking out this bag. I also was a huge fan of mountain hardware. I took this bag on a nine day kayak trip, and a five day backpacking trip. The bag itself is nice. The zippers on the other hand are completely useless. They are something you would expect to find on a VERY cheap tent. They snag three ways constantly. If you have to zip your bag once you are asleep, you will wake your self completely trying to zip it. In one case I dug my coat out and put it on instead of dealing with the zipper. I am so disappointed in this product I will never again purchase anything from mountain hardware. I do not say this lightly. Do yourself a favor and pass this one up if you plan to use it regularly.
Date published: 2011-10-13
Rated 3out of5
by bacrossmanfromJust ok...Pros:
1.) Good warmth to weight ratio for a synthetic bag.
1.) Having zippers on both sides is awkward and not needed. It creates drafts that can't be avoided by "hiding the zipper" - Basically putting the zipper against a companions bag, or underneath you to avoid drafts from breezy conditions.
2.) As a result of zippers on both sides, the hood becomes difficult to design, and this is evident as it cinches very poorly and allows for drafts. Also the cold zippers have tendency to be up against your face, and now you have 2 zippers to try to avoid instead of just 1.
3.) I also tend to feel a little more clammy in this bag than my marmot or feathered friends bags.
Despite the issues Mountain Hardware is very close to designing a great bag. My suggested improvements would be to get rid of that ridiculous 2 zipper design. Have 1 zipper at 3/4 or full length and focus on improving the hood.
Date published: 2010-06-01
Rated 4out of5
by mtdreamerfromYou work hard for the moneyI needed a cheaper bag that didnt wiegh 5 lbs and lets face it you work hard for your money. It kept me warm sick for 3 days at 12,000 feet at 25 degrees until i left to [*]. Little too warm for summer but hey thats what zippers are for. If you want to explore and are not going to cold go for it, but get long if you have bigger shoulders. The hood zipps around my thermarest pillow or jacket for pillow well and holds it in place. I paid [$]for mine and its still doing the job.
Date published: 2010-03-15
Rated 4out of5
by zonkerstoutfromMy favorite bag yetI used the bag for a 7 day backpacking trip in Yellowstone. As well as for trips in the Colorado Rockies. I could'nt have made a better selection. We had frost on more than one occation mid 30s. I never had to consider thermals. You probably would if the temp. dropped much lower than that. I woke up with a cold face pulled the hood closed and fell right back asleep. Love the waist length only zipper. It makes it easier to find and use the zipper all the time. The bag was light and packed very small in the compression sack. I added a dry-sack over it. The bag dried with-in minutes in the sun any time it got wet. I am between 6' and 6'1" 200 lbs. and would get the long next time. This is the bag for the money when synthetic is necessary.
Date published: 2010-08-06
Rated 4out of5
by Colin DevlinfromQuite a great bag!I bought this bag 2.5 years ago and used it the past 2 summers in a row as a backpacking guide for a high adventure camp out of Estes Park, Colorado. I literally slept in it every single night for 6 months. I've used it in all kinds of conditions and locations.
+ The bag is extremely comfortable. The material is silky and really nice to sleep in. Although the material is soft, it doesn't seem to lack integrity or durability. After extensive use the exterior shows no signs of wear.
+ Warm! It says its a 15 degree bag and I think it certainly is! I haven't done any winter camping, but I've slept in it from June-November in RMNP and the surrounding areas without every feeling it wasn't warm enough. I got a silk liner to sleep in this summer in hopes of keeping down on the grime inside, and added another 5 degrees to the warmth. So this thing can easily be made into a 4-season bag. Some have expressed problems with the hood design-- I personally have no issues with it, and quite on the contrary, it has kept me toasty warm on cooler nights.
+ Packability is key. I lived out of my 85 liter pack, so space and weight were essential. Mountain Hardware includes a pretty solid stuff sack with the bag, something I didn't know until I opened the box! Again, after tons of use, the stitching on the compression straps work perfectly. I can get it packed into about the size of a soccer ball.
- One of the biggest issues are the half zips on both sides. I actually really like the design, way more than 1 long zipper down 1 side, but the problem for me is that my lower half, especially my feet in the foot box, gets very hot! If they included small zippered vents down by the feet that would be a huge improvement! It is really nice to be able to sit inside your bag in the tent and play cards with the bag comfortably around you.
- One thing I was unaware of before I bought the bag is in the specs where it says the design is cut tighter in the hips and lower legs to reduce weight and increase heat efficiency, they mean it! I am a very slender fellow and the first couple nights felt a bit claustrophobic. Definitely means it's a 1-person bag... no room to squeeze another body in for colder nights. :)
Overall, I'd absolutely recommend this bag to anyone looking to spend a little bit of money on a quality product. If this bag had zippered vents in the foot box so my lower half could cool, I would have given it 5 stars.
Date published: 2012-01-10
Rated 5out of5
by winterloverfromExceeded expectationsGreat bag. In March, on a freakishly warm day I set out atop Mount Rogers (highest peak in Virginia) when conditions drastically changed. That warm day soon became a very cool night (about 25degrees on my handheld thermometer with wind speeds gusting at 75mph). The gusts were so powerful that it rushed under the vestibule and into the tent. Sleeping in only a pair of boxers and a thermarest sleeping pad...I stayed warm all night long. I could feel the wind push against my sleeping bag, but it never penetrated. I simply sinched the hood down and slept comfortable all night. Great bag for those willing to go with synthetic. Definitely worth the price.
Date published: 2008-04-10
Rated 5out of5
by meffromVery happy with this bagI used this winter camping in MN in a pup tent with doors that tie shut(i.e. drafty tent). Camped in a field with plenty of wind, temps dropped below 0 F overnight (I believe down to -4 F).
I wore mid-weight thermal pants, thermal shirt and wool hiking socks, and a balaclava (to pull over my mouth). My feet got a little cold a few times (I tend to have cold feet anyway), otherwise I was very comfortable, impressive for a 15 F bag. The bag handled condensation very well.
I am 6'2", 190 lbs. I have the Long and had room for my 4 liter drom bag, stove fuel, and the next days clothes in a water proof bag (I prefer to put on warm pants) and I had plenty of room. I can see how someone with broader shoulders might be a little cramped.
The zippers are somewhat prone to snagging, although it's very easy to figure out how to avoid this and get used to zipping them in such a way that it is not a problem.
The 1/3 length zippers make it easy to stay in the bag and stick your arms out to cook or perform other tasks. The draft tubes along the zippers proved more than sufficient. I don't find the zippers inconvenient, I actually kind of like them.
So far I've been able to crank down on the compression sack straps without any signs of wear/damage. The bag lofts back up fairly quickly after being compressed.
Date published: 2011-03-17
Ask a question and have it answered by REI product experts and fellow outdoor enthusiasts. Need immediate assistance? Use Live Help.
Loading Questions & Answers...
Mountain Hardwear Ultralamina +15 Sleeping Bag Customer Reviews