A summer bag that can hold its own once fall arrives.

Your tent or shelter may not have a thermostat, but the Mountain Hardwear Flip 35/50 Sleeping Bag lets you customize your level of insulation to match the mild or cool weather. The roomy, semi-rectangular bag's sides feature two different levels of synthetic insulation; one warm-weather side rated for 50 degrees Fahrenheit and one cool-weather side rated for temperatures down to 35F. All you have to do is flip it.

  • Four inches of lofty Thermic MX insulation are arranged in an off-set quilt design to reduce cold spots and loss of heat
  • Polyester lining breathes well and dries quickly
  • Can be unzipped flat and used as a blanket or zipped together with another rectangular bag (sold separately)
  • Adjustable top drawcord tightens the bag during chilly nights
  • A zippered chest pocket stores a headlamp or other small essential items

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Mountain Hardwear Flip Sleeping Bag: 35/50 Degree Synthetic

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Here's what others have to say...

5 5

More than two bags in one

  • Familiarity: I've used it several times

The "best buy" of bags for those "uncertian temp" spring and fall treks and every summer hike where cooler nights are expected. I have used this with an ALPS razor in a hammock in sub freezing nights and been warm enough to sweat. It really is two bags in one and the only bag of this quality that can zip all the way open. The extra large zipper pull makes adjustments from the inside easy. Its spacious enough to allow plenty of movement. I'm 5'9" and the bag can cover my head and then some. If you are looking for a spring-fall bag pair this with a liner and you wont be disappointed. For you tree dwellers this is like two top quilts in one

This bag does not come in a long version....

This bag does not come in a long version. I am 6' tall which is what's listed as the max user height. Being that I'm at the max height, would I be better off finding a long bag or would a 78" be fine?

Responded on

I'm 6'0" and I've never needed a long bag. At 78", the bag is 6" longer than we are tall. That is more than enough length for me, and I'm not a small guy at 210lbs.

Responded on

im 5'9" and the bag completly covers me with a few inches to spare, that is from feet to past the top of my head. its like a mummy on both sides. I have to leave it partially open.

5 5

Only used it indoors, but I like it

  • Gender: Male
  • Familiarity: I've used it once or twice and have initial impressions

Used it to sleep on a sofa; I will get it out on the trail come warmer weather. I bought this as a lighter and roomier option to my 0-degree mummy and I'm very pleased with it. I really appreciate the extra room.

It seems well-constructed and I was able to compress it down to a small bundle.

More as I field test it...

Hey, This bag oly comes one way, no left...

Hey, This bag oly comes one way, no left or rightzip, so when you haveit mated together you end up with a 35/50on top and a 35/50 bottom, right? so who gets overheated of cold?

Responded on

Hey Tom. It's perfect for couples! Enjoy.

What's the difference between "Titanium"...

What's the difference between "Titanium" and "BOX-Titanium"?

Responded on

Stephen. "Titanium" and "BOX-Titanium" is simply referring to the general color of the bag and how it is merchandised. The "Titanium" is merchandised in it's stuff sac and the other is merchandised in a stuff sac inside of a box with nice pictures on it. Same bag and everything. One just comes in a box and one does not. I hope this info helps!

How compact can it get, will I able to...

How compact can it get, will I able to fold it down & attach it to my backpack?

Responded on

pari. With the help of a compression stuff sack you should be able to get this bag pretty small and fit easily on to if not inside your backpack. Good Luck!

5 5

I'm a believer!

I was truly skeptical about this bag, especially since I'd been burned by 'innovative' sleeping bag designs in the past. I decided to throw caution to the wind and replace a sleeping bag that was twice what the Flip cost(but had a big elastic hole in the back...). I just got back from an early Spring trip out to the Olympics and can attest to the Flip's versatility.

I started out the evening covered by the 50 degree side and sleeping on the 35 degree side. When the temperature dropped to almost-freezing, I turned the bag over (still skeptical) and slept like a baby for the remainder of the night. The second night was at a higher altitude and still I was adequately warm in just long johns! You won't be disappointed by this bag (which, BTW, is great for using as a blanket if you or your partner tends to sleep at a different comfort level than you do and you want to snuggle).

There's more than enough leg room (in fact, I had my pants rolled up in the bottom AND a stuffsack with an 8oz fuel canister), a handy pocket on the 35 degree side, and a relatively snag-free zipper. I'd like to buy a compression sack because I know it can pack down smaller.