Patented Pad Attachment System - Widely considered the best design on the market for preventing drafts. Offers unmatched versatility, comfort and efficiency in a quilt style sleeping bag. For more information view our Product Manual. Also comes with removable webbing straps for use without a sleeping pad.

Elastic Binding Around Bottom Opening - Elastic binding around the bottom opening prevents gaps and drafts at the sleeping pad.

Differential Cut - A critical factor in quilt style bags with adjustable girth, differential cut allows for maximum loft from our premium down.

Continuous Baffles - With continuous baffles the down can be manually moved as temperatures dictate for maximum versatility.

Down Filled Collar - Our overstuffed collar fits comfortably against your neck to seal this critical area from drafts.

Trapezoidal Foot Box - We have shaped our foot box for the greatest comfort, warmth and efficiency.

Internal Stash Pocket - Keep your phone warm and easy to find, or keep your water filter from freezing.

Overstuffed Baffles over the Foot Section - Provides extra insulation over your feet to ensure toasty toes.

Overfill Available: For more information or to order overfill click here.

Imported. Designed, finished and inspected in Salida, Colorado.

Included
Free Shipping in the United States
Silnylon Stuff Sack
Storage Bag - 100% recycled, breathable fabric
2mm Cords for attaching to your pad

Specs

Small

Regular

Long

Small Wide

Regular Wide

Long Wide

Fits To

5'6"

6'

6'6"

5'6"

6'

6'6"

Fill Weight (ounces)

850fp

900fp

850fp

900fp

850fp

900fp

850fp

900fp

850fp

900fp

850fp

900fp

14.2

13.2

15.2

14.1

16.3

15.2

15.6

14.5

16.6

15.5

17.8

16.6

Total Weight (ounces)

21.9

20.9

23.3

22.2

24.8

23.6

23.7

22.6

25.4

24.2

27.0

25.7

Loft Single Side

2.75"

Shoulder Width

54 inches (Similar to 63" mummy bag)

58 inches (Similar to 67" mummy bag)

Hip Width

46 inches

50 inches

Foot Girth

40 inches

44 inches

Footbox Length

23 inches

25 inches

26.5 inches

23 inches

25 inches

26.5 inches

Packed Size

6.5 X 11.5 inches 6.5 Liters

7 X 12 inches 8 Liters

Due to variances in manufacturing and materials, finished specs my vary by +/- 2%

◄ Metric Specs

Specs

Small

Regular

Long

Small Wide

Regular Wide

Long Wide

Fits To

167.5cm

183cm

198cm

167.5cm

183cm

198cm

Fill Weight (grams)

850fp

900fp

850fp

900fp

850fp

900fp

850fp

900fp

850fp

900fp

850fp

900fp

404

375

431

401

462

430

441

410

471

438

505

470

Total Weight (grams)

620

591

660

630

703

670

672

641

719

686

765

729

Loft Single Side

7cm

Shoulder Width

137cm (Similar to 160cm mummy bag)

147cm (Similar to 170cm mummy bag)

Hip Width

117cm

127cm

Foot Girth

102cm

112cm

Footbox Length

58.5cm

63.5cm

67.5cm

58.5cm

63.5cm

67.5cm

Packed Size

16.5cm X 29.2cm 6.5 Liters

17.8cm X 30.5cm 8 Liters

Sustainability

Why yes, we do think it matters. It matters a lot!

From the fine details to big picture goals, we know our decisions about materials, partnerships, and daily operations can have far reaching effects outside this building. Climate change affects us all. It is personal. We have more progress to make, but here are a few ways we currently prioritize sustainability.
1. Reduce demand for raw materials
2. Reduce the use of harmful chemicals
While Katabatic Gear is committed to making UL gear that exceeds your expectations, it is equally important that we minimize our negative impact on the planet and its occupants. Whether it’s a special place in the backcountry, or the city you live in, we want to do our part to maintain healthy land, air, and water to keep this a comfy home for all. Though ours is not a perfect plan, we will continue to search for ways to improve our sustainability efforts, and minimize the impact of our operations on the planet.
Responsibly Sourced Down
Like many of our customers, we at Katabatic Gear are concerned with the environmental and animal welfare impact of our products. We are dedicated to a responsibly sourced, and very high quality product, just like our down supplier, Allied Feather and Down. They are certified through both the bluesign®and Responsible Down Standard®programs. Another reason we partner with Allied: we can offer our customers access to the Track My Down program. It allows our customers to learn everything there is to know about the down in their specific quilt.
900 Fill Power Goose Down
We use the highest quality 900 Fill Power goose down, offering the most loft and warmth for the least weight. Goose down has many advantages over synthetic insulations. In warm temperatures goose down allows heat to pass through, giving it a wider comfort range than synthetic insulation. The down can be intentionally moved around in its baffles, allowing you to adjust the amount of insulation based on conditions. Finally, synthetic insulation breaks down more quickly with use, losing loft and warmth. As a result a down filled product has a life span many times that of a synthetic filled product, making down a much better value. Our 900 Fill Power premium goose down is produced by Allied Feather, and is offered with ExpeDRY™ water-resistant treatment.
850 Fill Power Duck Down
With all the benefits of down vs. synthetic, duck down is often cheaper than goose down, only due to the fact that it is more widely available. For years it was difficult to obtain duck down in a fill power greater than 700, which meant a heavier sleeping bag. Now that we can get responsibly sourced, high quality, 850 f.p. duck down, we are happy to be able to offer it to our customers. There are no quality, performance, or longevity sacrifices in buying a duck vs. goose product. Our 850 Fill Power premium duck down is also produced by Allied Feather, and is offered with ExpeDRY™ water-resistant treatment.
ExpeDRY™ Water-Resistant Down
We are pleased to offer ExpeDRY™ ultra dry down. This down has been treated to provide additional resistance to unwanted moisture. In conjunction with our highly water-resistant shell materials, ExpeDRY™ provides extra peace of mind, and dries faster than untreated down if it does get wet. Is this a miracle water-proofing that will allow you to sleep out in the rain or dunk your bag in water with wild abandon? No. Will it give you extra protection and help maintain loft in damp conditions? Absolutely! Produced by Allied Feather. Available in 900fp goose down and 850fp duck down.
Pertex Quantum Eco Ripstop (.85 oz/yd)
The best fabric you’ll find for the shell of an ultralight sleeping bag.
1. Protects your down from the elements
2. Keeps your insulation loftier: Lightweight, soft, breathable, and downproof
3. Reduces demand for raw materials: Eco version of Pertex Quantum is made from recycled yarns and maintains the fabric’s advanced performance qualities
Pertex Quantum Taffeta (1.0 oz/yd)
The softest fabric you’ll find for the liner of an ultralight sleeping bag. This Pertex Quantum plain weave makes for a silky soft liner fabric on the inside of our quilts. We get tons of customer feedback stating that it’s the most comfortable sleeping bag fabric to ever brush up against them – not as clammy or crinkly as other fabrics.
Quilt Style Sleeping Bag
The idea behind a quilt style sleeping bag is to eliminate the insulation from the bottom of a conventional sleeping bag. Why? Insulation must have loft and trap air in order to be effective. Since any insulation beneath your body gets crushed, it is wasted. So why not leave the insulation (and the fabric and all that weight) out of the bottom of the bag? This is what a quilt style sleeping bag does, but it goes one step further.

When a quilt style sleeping bag is designed well, versatility is significantly increased. Our patented pad attachment system and elasticized edging keep your body heat in and the cold drafts out. When conditions are warm, lay the quilt over you like a blanket and allow some ventilation. There are numerous variations in between, making our quilts comfortable in a much wider range of temperatures than a traditional sleeping bag. Another huge benefit of a well designed quilt: you can toss and turn and roll around without getting tangled up or rolling off your pad!

Attachment System
The backbone of our down quilt style sleeping bags is our patented Cord Clip attachment system. The beauty of this design is its simplicity. All our bags feature our Cord Clips, and come with 2mm cord for attaching the sleeping bag to the pad. Simply cinch the cords around the pad, and attach your bag! This system works easily with most sleeping pads.

Our Cord Clips feature two attachment options for maximum versatility. The first attachment position allows the clip to slide freely on the cord. For warm weather this gives you the most freedom of movement. As the temperature drops, clipping into the second position allows you to lock the bag in place on the cord. In this position you can control the girth of the bag, and are able to set the bag to overlap your pad to lock out drafts. Even with the Cord Clip in this position, adjustment along the cord is easily accomplished by lifting the Cord Clip vertically. With the Cord Clip held vertically it slides easily along the cord. Returning the clip to its horizontal position locks the Cord Clip in place along the cord. This allows you to adjust the interior volume of the sleeping bag, as well as adjust the bags position on top of the sleeping pad. Secondary clips help seal out drafts when the temperature really drops. This unique design offers significant advantages. The ability to attach your sleeping bag to the top of the pad, as well as the ability to easily adjust the girth/volume of the bag, allows you to optimize the position of the bag depending on your sleep position, and the level of warmth you need from your bag. In warm weather you have much more room than you are used to in a mummy bag. In cold weather just close the bag in around you for maximum warmth.

We have engineered our Cord Clips to be strong and durable, while being thin and unobtrusive. Even if you have your sleeping bag pulled in under your body, our Cord Clips are designed to lie flat and to be unnoticeable. Our Cord Clip system is fast, simple and easy to use. Attach the cords around your pad before you leave home. Then just lay out your pad, clip your bag on to it, adjust as needed, and sleep!

Differential Cut
Our sleeping bags feature a substantial differential cut, which is highly beneficial in a quilt style sleeping bag with adjustable girth. The shell fabric is cut wider than the liner fabric, making the circumference of the shell larger than that of the liner. This means that when you start to draw the bag in on a cold night, you’re less likely to crush the insulation creating cold spots. This is a detail that many manufacturers overlook, but we think it’s one of the keys to a more effective quilt, and a warmer night’s sleep.

Continuous Baffles
The baffles in our quilt style sleeping bags are continuous from one side to the other. This allows down to be moved to the top, sides, or bottom of the quilt when temperatures fluctuate. On warm nights, you can move the down to the sides or bottom, allowing a little heat to escape. On cold nights, move more down to the top of the quilt to keep that body heat in. This works particularly well when the quilt is attached to your pad, because the same part of the bag is always on top, no matter how you roll, toss, or turn.

Down Collar
Our quilts feature an overstuffed down collar around the neck opening. This critical feature means you can comfortably seal warmth inside your sleeping bag without choking yourself with a scrawny drawcord.

Trapezoidal Foot Box
Optimized for when you need the most room, lying on your back, our trapezoidal foot box fits great no matter what position you are lying in. Plus we overstuff the baffles over the foot section to provide extra warmth. Our goal is simple: we want you to have warm, happy feet while you sleep.

Separate Hood
When you think about it, a separate hood really makes sense. If you toss and turn, your quilt stays in place on top of your pad, and your hood stays in place on top of your head. You are not going to wake up in the middle of the night, lost somewhere in your mummy bag, wondering which way leads out.

Do you need a hood? Here is what we have found: if temperatures are going to be near the temperature rating of your quilt, then you will probably need a hood. If the forecast calls for warmer weather, leave the hood at home, and just wear a warm hat to bed. Looking to save weight and get the most use out of minimal gear? Take a warm jacket with a hood, and wear that to bed if the weather is cold. You keep your head warm, and add extra warmth to your entire sleep system.

Bivy Sack in Conjunction with Quilt
Our water resistant, highly breathable bivy sacks are designed for use under a tarp or floorless shelter. These bivy sacks provide a waterproof floor, full bug protection, and a water resistant upper to protect your quilt from spray and mist. Our bivy sacks are designed to integrate perfectly with our quilts. Simply attach your pad to the floor of the bivy through the pad attachment cords, then clip your quilt on to these same cords. Your pad stays in place in the bivy; your bag stays in place on the pad. Leave your pad attached to the bivy and setup the next night is a breeze.

The System as a Whole
What does it all mean? Set up and adjustment are quick and simple. The quilt stays in place on top of your pad. The hood stays in place on your head. All our components are designed to work together, but the system is also designed to make the most of gear you already have. Our quilts can be partnered with almost any sleeping pad you like. Use your hooded jacket or a warm hat on cold nights. Use the tent you already own, or partner our bivy with your tarp. All in all, you are making the most out of every piece of gear, while resting comfortably no matter what position you sleep in.

The bottom line? Our sleep system is much more versatile than any conventional sleeping bag, and it weighs a lot less!

Super Warm

Switched over from a sleeping bag recently and couldn't be happier. The material on the inside feels better than anything I've used by far. Had this out with a forecast for 16F, was warm with my fleece jacket, some pajama pants and my down jacket thrown over my legs. If I did it over I would get the Flex, this would be my one and only bag if I could open it up for warmer weather. Packs up incredibly small. with the 850 down, can't see any reason to get the 900.

Warm and cozy at 20 degrees!

Alsek Quilt

I've used the Alsek twice now and I've been very pleased with the warmth and craftsmanship of this quilt. I can also say their customer service is top notch. I would highly recommend this quilt and Katabatic gear.

First time quilt user

I was skeptical about using a quilt, but I just returned from an 8 day hunt in the frank church wilderness where temperatures continuously dipped into the upper 20s. I had not one cold night and the chord system around the sleeping pad works unbelievably well.

Super Quilt!

Its so light! Kept me warm when I forgot my tent on a trip above treeline in Sequoia NP, temps were just around freezing. Compresses down easily, and the tiedowns work very well and as described. I got the Wide 6' / 850fp ExpeDRY Duck Down, and I had plenty of room to move around. I'm a 5'10, 190 lb guy. Only issue is I'm a side sleeper and often bring one leg up toward my chest. This is a squeeze, but once you get your leg up there its roomy at the top. Read the dimensions and measure around yourself to to know what you're working with. Priced pretty reasonably compared to other options. Would buy again if I ever needed another.

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