Solo Quilt v4.0

- 14 % Off


Ultralight synthetic outdoor quilt – ideal for the long haul with cold and/or wet weather conditions

Size guide
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Designed by hikers in the Himalayas

  • It’s ultralight, compact and versatile.
  • Tried and tested in cold and wet conditions, the innovative hybrid design lets you manage ventilation when things in your tent start to heat up.
  • Designed to let you spread out and let you sleep in any sleeping position, ideal for side sleepers
  • Available in 2 comfort temperature ratings (25°F / -4°C and 10°F / -12°C)  and 3 size options (S, M, L).
  • Washable and easy-drying.

The Blue Bolt solo quilt is a sleeping system made from cutting edge Climashield® APEX insulation with an outer bivy shell and a vapor-barrier inner lining that prevent internal condensation, keeping insulation dry.


Efficient design with high performance materials

Blue Bolt Solo Quilt offers tested and proven improved cold and wet weather sleeping bag performance for better sleep outdoors.

It is made with:

  • a weather-proof, bivy-like outer shell,
  • a vapor barrier liner (vbl) and
  • the innovative Climashield®APEX insulation.

Using these materials, the insulation is protected from moisture and windchill, and your quilt maintains its thermal performance – keeping you warm and comfortable wherever you are, whatever the weather.


Sleep in any position you want

With the Solo Quilt, you can sleep on your back, on your side or any way you want.

The Solo Quilt hood has an extra length that extends beyond the shoulders and neck, and the simple contour design makes it easy to wrap the quilt around your body or head. It keeps out drafts and allows you to comfortably cover your head no matter how you sleep.


Can be used as a blanket to wrap around when just sitting out at your campsite

Remove the central zipper and use to to wrap around, easily put it on or hang it on your lap, so it’s also useful even when you’re not yet going to sleeping but want a soft warm layer to snuggle in, before calling it a night.

Restful sleep

Pad attachment system

Attach the elastic webbing (included) to the sleeping pad. This is useful when the tent is not used when the wind is strong. It helps keep your sleeping system together.


Rectangular foot box with zippers by your feet

Equipped with a zipper by the feet, to provide ventilation for camping in warmer days.

Easy care

Easy to wash and quick-drying

  • Machine wash or hand wash using a neutral detergent.
  • Do not dry clean!
  • Tumble dry or hang dry under the sun ☀
Field tested

Tested in the Himalayas

Blue Bolt’s ambassador Peter Van Geit first used the Solo Quilt v1 in 2019 for a 3000 km trek across 120 Himalayan passes over 4 months.

“One of the best items in my minimalist gear set this year!”

Peter Van Geit, Ultra runner and Alpinist

The Designer

Blue Bolt

Blue Bolt is India’s first ultralight outdoor gear manufacturer making advanced gear for fast hiking and mountaineering in the Himalayas. Founded and directed by Huzefa Siamwala, the mission is simply to create very best outdoor gear products which will add help with lightening the backpack weight and perform reliable in extreme weather conditions.

Material and Construction


Windproof, Water resistant Bivy Shell

10D ripstop outer shell that is durable, windproof and incredibly water-resistant. Fancy sleeping out the open under the clear skies or under a tarp? You can, without worrying about feeling the wind chill or getting your bag wet.

The strong water resistant outer layer mean the insulation will remain protected and the droplets will float off if the bag is exposed to drizzle or if you spill some water on it.


Continuous filament insulation technology

Innovative synthetic insulation that’s cruelty-free. Climashield® APEX insulation offer superior insulating and quick-drying performance in wet conditions compared to goose or duck down. No clumping, no cold spots. No feathered friends harmed to keep you warm.


Vapor barrier technology

10D non-breathable liner (vbl) with breathable draft stopper to prevent that dreaded clamminess feeling. Hike in the wet, humid and freezing cold conditions found in places like Alaska, the PNW, Scandinavia and the Himalayas – and be confident that you’ll get a good night sleep.


Every detail matters

We take pride in making beautifully hand-crafted high quality product.

  • Sewing is done carefully by fine skilled tailors with high level of attention to every small detail.
  • We use only the best quality components from the some of the best companies in the world. Insulation comes from Climashield, fabric is custom made, zippers come from YKK, thread from Gutterman, needles from Groz Bekhert, elastic from Spica.
  • Smallest size 9 needles are used to ensure that the needles holes are as tiny as possible.
  • Poly core industrial thread for strong, long lasting and even seams.

Technical Specs

Find the best size for you

Solo Quilt sizing guide

More details here

Solo Quilt Technical Specs

table to show the solo quilt tech specs

Customer Reviews

Customer Reviews

Based on 11 reviews
First quilt, didn't disappoint

This is the first quilt I've used and it did not disappoint in the area of comfort. I sleep cold and I typically turn a lot throughout the night. I used the 25 degree bag in temps down to the low to mid 20s with an inch or so of snow on the ground. But we were in a shelter with a fireplace (open on the sides but covered with tarps) on the Laurel Highlands Hiking Trail and the internal temps were between 28 and 38 so I can't speak too much about the temperature rating other than to say I was warm. I did match the quilt with an xtherm pad and was wearing down pants and jacket. Personally, I could do without the zipper toe box to save a little weight as I will likely never use that - I'll use my 40 degree sleeping bag if the temps are warmer than 35 degrees overnight. I look forward to testing the quilt in other conditions, but so far I really like the quilt. I was surprised how well I slept and that I didn't slide around like I do in my sleeping bag. My xtherm pad is only 20 inches wide and usually I deflate it a bit when in a sleeping bag to settle into the middle. But with the Solo Quilt I was able to inflate it all the way and still stay in the center of the pad all night. The strap may have helped with that as well.

Ingo Orland
Psyched about the design and craftmanship !

Just received my Blue Bolt Solo -4C Quilt (medium size)
I am really psyched about the design and great craftmanship.
While I did not yet have any chance to test it in cold temps (because of the summer starting over here), I did test it in higher night temps (> 10C) and had no problem with sweating whatsoever - opened it up and used it like a blanked. So I don't see an issue with the vapor barrier liner. I love the integrated hood - which also helps quickly heating up the inside in the beginning, the 3D footbox -which really gives my feet plenty of room, as well as the draft stopper - much better solution than just straps (though they do come with a strap)..
I own several sleeping bags and quilts, but wanted something that is more resistant to humidity and tent condensation . So I did some extensive research of the "small" (compared to down) synthetic quilt market and came across this cottage company "Blue Bolt" from India, which test their products in the Himalayas. I tested the material and is really water repellant on the outside and waterproof on the inside.
It feels light when sleeping (my quilt without stuff bag etc. weight in at 700gr).
The quilt comes out of the box with a compression bag, stuff bag and strap attachment.
With a height of 178cm, the medium sized Solo, gives me plenty of room inside.
The only cons I could see, is that the material is bit noisier than other sleeping bags, but for me this is not an issue. On the other hand, it seems tougher than the material of my other quilts, though is only 10D Nylon.
BTW: shipping for me was a quick 2 weeks (India to Israel)

Radhika Nomllers
The best for harsh winters

I used this on my 4 days trek to Hampta Pass and the warmth and comfort it gave to me was phenomenal. I am the kind who feels cold really fast, especially on the feet but never while using this quilt. Plus it is so light and compact that it did not occupy space at all as comapred to my previous sleeping bags.

Would really recommend it.

Shalini Sharma
Savior in the extreme and harsh winters in The Indian Himalayas

I got my quilt for -20°C before leaving for my Trans Himalayas journey in Uttrakhand where my plan was to use it for a high altitude climbs in late November and December 2020 in alpine style. Even after this I have used it for multiple high altitude Himalayan winter climbs. Lately in December it worked pretty well for me even in -35°C to -40°C at Kang Yatse at 6270 meters, and Mount Yunum at 6150 meters. I have used the quilt from all sides like from top, side and down and I have been very comfortable with the movements as compared to the sleeping bags. In terms of warmth I have not come across anything best except this ultralight gear by Bluebolt. Majority of we females tend to loose more heat than men due to lower metabolic rate which makes us feel more colder than men but the fabric used in this quilt has been a solution to the biggest problem i.e. condensation. It does not absorb moisture and keeps you warm inside. Being an alpinist I tend to choose as light as I can along with the best quality and nothing makes me think except Bluebolt quilts.

Solo Quilt, it’s doing its job

Solo Quilt is warm, cozy and rested. Draft free. Versatile. Quite Light .
I use it with a Neoair Xtherm wide, under 0° temps are just fine with this setup.
Can be stuffed for long periods without harming the insulating properties.


What is a quilt? What is the difference of between that and a sleeping bag?

A quilt is a sleeping bag without the insulation on the back. The idea is – by taking away this least effective section of a traditional sleeping bag, you get an efficient, lightweight, comfortable and versatile backpacking “blanket.” Because a quilt doesn’t wrap completely around you, it feels more like the typical blanket you use at home, allowing you to sleep the way that works for you – on your back, on your sides, or on your stomach.

Without a hood like a traditional sleeping bag, how do I keep my head warm with a quilt?

The traditional sleeping bag does its job well if you’re a back sleeper but if you are like a rotisserie when you sleep, you may flip over during the night and end up face down in the hood.

Our Solo Quilt has a hood – extra length which extends past the neck section of typical quilts. And with its simple contoured design, it is easy to wrap the quilt around the body and over the head. It reduces drafts from coming in and allows you to cover your head comfortably whichever way you sleep.

How do you avoid drafts from coming in when using a quilt?

Our Solo Quilt has a strip of non-insulated breathable fabric sewn around its edges. Its purpose is to close off any accidental gaps that will cause the warmth from coming out.

You can tuck the draft stopper under you to create a cozy cocoon of warmth that is free of drafts or you can let it just lay out on the sides for easy ventilation when it gets too warm. The draft stopper and the hood work together to create a cozy cocoon of warmth that is free of drafts.

What is the purpose of the “pad attachment system”? And how do you use it?

The Solo Quilt’s pad attachment system is simple to use. 1.) Slip the two elastic webbing over your sleeping pad – position them where the toggles that are attached to the sides of quilt will be when laid down on the sleeping pad. 2.) Attach the toggles into slots in the elastic webbing

What is the advantage of synthetic insulation over down insulation?

Synthetic insulation is best suited for wet and humid hiking environments. It does not clump when it gets wet and it dries easily compared to down insulation.

The synthetic insulation we are using for the Solo Quilt is Climashield® APEX. This innovative insulation is the lightest weight and most thermally efficient continuous filament insulation on the market today. It provides continuous warmth and comfort in moderate to subzero temperatures and packs small for every adventure.

What is vapor barrier liner or vbl? And why do you use it on the Solo Quilt?

A vapor barrier is any material that has the ability to slow down the migration of water vapor. This technology is used in liners for clothing, sleeping bags, and other outdoor gear – to protect the insulation from both “sensible” and “insensible” sweat. In hiking environments that makes it hard to dry out your insulation, it’s imperative that you keep your insulation dry and protected from moisture. Otherwise, you’ll have a damp and useless insulation.

Solo Quilt v4.0

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