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Down Flip 35/50°F, 1/10°C Sleeping Bag


https://www.mountainhardwear.com/down-flip-35-50f%2C-1-10c-sleeping-bag-OU8534.html OU8534


Stay warm in a range of conditions. This semi-rectangular bag has more down fill on one side than the other, so you can flip it according to the temperature. Water-resistant Q.Shield™ DOWN 600-fill retains maximum loft in damp conditions.
This product is certified to the Responsible Down Standard (RDS) by Control Union.
Style# 1541171


    • 2. Select Bag Length:
    • REG
    • Sleeping bag size guide Sleeping bag size guide mobile
    Sizing: True to Size
    • 3. Select Zipper Location:
    • LH
    Sizing: True to Size

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Features & Specs

  • Weight: - 1 lb. 12 oz. / 788 g. -
  • Reviewers rated this product: - True to Size -
  • Good For: - Backpacking / Hiking -


Stay warm in a range of conditions. This semi-rectangular bag has more down fill on one side than the other, so you can flip it according to the temperature. Water-resistant Q.Shield™ DOWN 600-fill retains maximum loft in damp conditions.
This product is certified to the Responsible Down Standard (RDS) by Control Union.



  • Fabric Body: 30D Nylon Plain Weave (100% Nylon) Insulation: Q.Shield® DOWN 600-fill Lining: 30D Nylon Plain Weave (100% Nylon)
  • Insulation: Q.Shield™ Down 600-fill
  • Insulation: RDS Certified Down
  • Bag Fill Type: DOWN


  • Weight: 1 lb. 12 oz. / 788 g.
  • Bag Shape: Rectangular
  • Bag Loft: 3 in / 9 cm
  • Bag Fill Weight: 250 g. / 9 oz.
  • Inside Length Regular: 76 in / 193 cm
  • Hip Girth Regular: 58 in / 147 cm
  • Shoulder Girth Regular: 62 in / 157 cm
  • Foot Girth Regular: 38 in / 97 cm


  • Q.Shield™ DOWN 600-fill down has an advanced treatment applied that resists heat robbing moisture and retains maximum loft in damp conditions
  • Flip the bag from one side to the other to change temperature rating
  • Roomy and versatile semi-rectangular cut
  • 5" baffle spacing keeps down carefully controlled for even, predictable loft
  • Dual slider zipper extends around footbox allowing the bag to be opened up and used as a comforter, two bags to be zipped together and increasing ventilation options
  • Insulated draft tube with anti-snag panel prevents cold spots along zipper
  • Single-handed drawcords easily adjust hood closure
  • Chest pocket with Velcro® closure provides storage for small items
  • Stuff sack and mesh storage bag included
  • Imported


Down Flip 35/50°F, 1/10°C Sleeping Bag is rated 4.4 out of 5 by 18.
Rated 5 out of 5 by from I have two I have two of these because they zip together. They are comfortable (we are 5'4" 120-140 lbs.). I use these as comforters and throw blankets around the house as well. I like the color and they are easy to store. They pack small and light. I find them a good value because of their versatility.
Date published: 2018-06-30
Rated 5 out of 5 by from Love this Bag I was excited to find a bag that was lightweight, warm and spacious. My 20lb dog insists on burrowing in the bag with me when we camp. This is more spacious than a mummy bag, but still feels cozy.
Date published: 2018-04-29
Rated 5 out of 5 by from Great weight for the South East I haven't put this thing through its paces fully but initial feedback is that its a perfect weight for the late spring/summer/early fall in the SE US. I'm tall, 6' 3" and would've gone for the Long but they were unavailable so I went with the Reg. It's long enough but if I really needed to hunker down in it (not really that kind of bag) it would be too short. Love the dual weights, makes it perfect for what I do with it.
Date published: 2018-03-22
Rated 5 out of 5 by from Flip down Sleeping bag Super light and packable! Haven't used the 35-degree side as it's only late summer but seems toasty enough. definitely not a full 3 season bag but also doesn't cost as much either. I love that it unzips flat to become kind of like a comforter. Wish the stash pocket had a zip or velcro to keep it closed but that's just a minor inconvenience. overall killer product.
Date published: 2017-09-09
Rated 5 out of 5 by from Perfect for summer camping Sought this bag out after suffering warm nights in my 15° mummy bag. After using it for three nights on the Timberline trail around Mt Hood I'm sold. Cons:: I'm 6'2 and it was a little tight across the shoulders but just barely. I also wished there was a long version! But it was just about right as is. Pros: Sturdy build, zipper rarely snagged. Light weight, packed down nicely in compression sack (sold separately). I was very comfortable although only tested it down to low 50's on trail. Tested it in upper 40's before hike and was just as comfortable. Semi rectangular shape means leg freedom! I've read where some people weren't warm enough with this bag. As with any down bag you have to have something insulated to put the bag on. I use an inflatable pad with insulating properties. If you lay it on the ground or on a cot as the air and ground cools under you, so do you. The down underneath you is useless as it compresses. I highly recommend this bag if you live in area where summer low temps are 40+. Free those legs!
Date published: 2017-09-05
Rated 5 out of 5 by from Great bag. I needed a new sleeping bag for a back packing trip. I sleep on my side or stomach so I am not a huge fan of mummy bags. This bag was great. I'm 5'9" and got the regular length, plenty of room to turn over in and get comfy. Super light bag and great feel. stuffs down very small in sack. plenty warm for me on the light side. Can't wait to use it again.
Date published: 2017-05-28
Rated 5 out of 5 by from Awesome "On-The-Go" Sleeping Bag So I already have a heavy duty sleeping bag that's unfortunately too warm everywhere I've gone, 5 degree Lamina Z sleeping bag, and bought this Down Flip 35/50 for casual/summer overnight camping. It's awesome for summer and very light and takes up little space in your bag. But this really won me over when I went camping in Pomona, CA during the rain for New Year's Eve. it had just stopped raining and some condensation had built up in my tent and wet my sleeping bag. But I'm glad to say that didn't affect the warmth. It still kept me warm through the night. Somewhat spacious, but then again I kick a lot in my sleep. Unfortunately it doesn't cover your head too much and I didn't have a beanie. But this isn't really something you use for winter!! I just didn't want to bring my other bulky sleeping bag that makes me sweat. But for the weather dropping down to a whopping 40 degrees, this sleeping bag kept me warm!
Date published: 2017-01-03
Rated 5 out of 5 by from Fills a niche perfectly! In a sea of seamlessly endless supply of mummy bags, you simply can't find bags like this. A quality semi-rectangular bag, that is perfect for weekend warriors from late spring to early fall (weather permitting). Has great versatility, and packs small and light. True, it does not seem like a three inch loft bag, but no matter it performs well regardless. Although it's not a performance issue, I've got to say I love the colors of this bag (please don't change the Sherwood color MH), too many companies trying to hard to be trendy. My family's quick to reach for this bag, enough said. I would not hesitate to recommend this bag to others, and it looks like I will be purchasing more for my family so I can get my bag back.
Date published: 2016-09-17
Rated 4 out of 5 by from Versatile and light weight I've used this bag a few times camping in the Pacific Northwest. I chose it mainly because of it's rectangular shape. I really hate mummy bags with a passion. I move around too much when I sleep and this semi-rectangular bag is better suited for that. I used it on Mt. Hood in the summer and I kicked around so much during the night that I probably ended up sleeping under both sides w/o trying. I really couldn't tell the difference. I don't know how low the temperature got but am guessing in the lower 50s and I stayed comfortable throughout the night even though the morning air was chilly. A couple of weeks ago I took it backpacking at Tillamook Head. It got down to about ~50 degrees and I slept under the 35 degree side and inside a silk and cotton bag liner. I was just comfortable. I might have been able to go down another 5 degrees before getting uncomfortable, but I don't think I could have gone much lower than that. Take the 35 degrees with a grain of salt; especially if you're a woman. I tend to sleep fairly warm but there's no way this would have kept me warm down to 35 degrees, even with a bag liner. I'm planning to go to Alaska next week and spend two nights at Wonder Lake where it's been getting down to the high 30s. This bag will likely be staying home and I'll borrow or rent something warmer. Overall, I do like this bag. I like the open foot box, the light weight, the colors and how easy it is for me to burrow into it and throw it over my shoulders like I would a blanket at home. It's a great bag for summer/warmer temps but save your money if you're looking for something that will keep you warm down to 35.
Date published: 2016-09-02
Rated 1 out of 5 by from Too thin - Not 3" Loft as stated I ordered this bag online based on its specs and am returning it for two reasons. First, the 3" of claimed loft in the specs must be cumulative, not each side. Second, after fluffing the bag and letting it sit on the bedroom floor for three days, my wife and I both agree the cumulative loft is closer to 1 1/2", maybe 2" in a few puffy places, way too thin for a claimed 35 degree bag, not even half as thick as our other down bags of same temp rating --- neither of us would sleep in this bag outdoors. Second, I was hoping this rectangular bag would be suitable for zipping together as a pair for couples use, which configuration I'm a big fan of and have happily used a pair of REI down bags for years. Though the specs say they zip together, which I assume is true, the bag is NOT available in LH and RH zipper configurations, which is not apparent until you try to select that option from the web site. So if you do choose to zip two of these bags together you will have someone unhappy sleeping under thin half and other person getting the thicker half, which would not be a big deal if it had adequate loft in the first place. I own a number of excellent mountain hardware tents and down bags that I have used for many years, but this product misses the mark badly. There are many other better bags on the market in this shape at this price point.
Date published: 2016-07-30
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