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Excellent piece! I picked it up out of curiosity when I ordered a quilt. It vastly exceeded my expectations on a recent AZT long section. I put it in my pack as an afterthought and ended up using it every day. It disappears into my fanny pack. It got worn as a sleep shirt, a cool morning wind layer, and town clothes while other things were in the wash on a resupply. Pleasantly surprised!

I’ve used this bivy for over five years on more than 20 trips. I’ve definitely been made fun of for sleeping in a “coffin,” but truly, there’s no better system for going light. What makes it so great is the bathtub-style waterproof material around your feet. I’ve paired it with a tarp in some pretty extreme, wet weather, and it has held up every time. Yes, it’s small, and if you’re claustrophobic, a bivy might not be for you. But if you’re interested in trying a lighter sleep system, do yourself a favor and grab one of these to see if it works for you. I haven’t regretted it.

This is my 11th quilt, and my best. Incredible loft, and the overstuff is apparent…especially in the foot box. Pad attachment system is brilliant, effective, and easily adjustable. Neck baffle is unobtrusive when not needed, and very effective when temps drop. Mine is 900 FP (no additional fill), standard length and width. I’m 5-11, 170, and this size is right for me. Can pull it up to my hairline when fully stretched out, and easily over my head when on my side w knees tucked. Width is fine for me, especially given how the attachment system and secondary hooks keep it secured. It packs nice and small. Min temp I’ve seen so far was 36. I wore lightweight baselayer top and bottom and thick socks and was snug as a bug (on an R5.4 pad). So I consider the 30-deg rating accurate, and probably a comfort rating for me, with margin. Buy once, cry once. This quilt is excellent.

I don't write reviews. I felt the need to review this one because it was my metaphorical rock while hiking the pacific crest trail. I have used this quilt as low as 23 Fahrenheit and have been extremely pleased that it has survived the distance and travel I have put it through. It has always been very warm when paired with a well insulated sleeping pad. I washed it with down wash when the trail was over and it looks like a new quilt still. Very little down shed. If I could give this a 100/5 I would.

This bivy is my new go to. Paired with a light tarp this shelter is extremely light and takes up very little space in your pack. Highly recommend

I have been backpacking since 1988 and I have watched the quilt phenomenon develop for the last 20 years or so with skeptical interest. As a cold sleeper, I had doubts that a quilt would be warm enough and keep out drafts enough for me to sleep in cold weather. Anyway, I finally took the plunge and ordered the Sawatch for high mountain backpacking where the lows are often near freezing, even during summer. The first night I had the bag I slept out in my backyard right after a snow storm had blown through. The conditions were brisk and breezy with temps right around freezing. I laid out a ground cloth, Exped 6.5R sleeping pad and my Sawatch. I was dressed in thin fleece tights, sun hoody and a beanie. I fell asleep in the cool, fresh air and slept like a baby. When I woke up at 2am, the bag was covered in frost, but I was still toasty warm! Adding a tent, I should be good for anything the mountains can throw at me until winter sets in. I was impressed with the lack of drafts and I didn't even use the pad attachent cords. Excellent product.

This is such a fabulous quilt - the weight in comparison to enlightened equipment to the actual warmth - a true warmth rating. Love this thing!

James Augustine

I roll around all night and this quilt kept me warm and draft free regardless of my sleep position. I love how versatile, light, and warm it is.

This quilt is the best in all categories! It is warm, comfortable, lightweight, fluffy, and it packs down super small. It has kept me warm on cold snowy nights when the temperature was in the teens. I absolutely love it!

Super lightweight. Well made also great customer support .

My partner and I bought this because we each have quilts that are the warmest quilts we’ve ever had and this jacket is no different.
My partner is severely cold due to POTS symptoms and after trying jackets from 4 separate companies this jacket was by far the warmest and best warmth to weight ratio. This jacket with a base layer and alpha 120 fleece beneath it was TOASTY at 4 degrees and static. The thicker denier fabric on the outer with a more matte finish blocks some wind, the inner is slightly reflective which brings more heat retention, and the hood adjustment locks the heat in. 10/10 cannot wait to order my own once my current puffy is beyond repair.

I recently upgraded to the Katabatic Gear Wren Bivy after my Piñon was unfortunately stolen from my campsite in the Superstition Mountains last month. While that was a frustrating way to be forced into an upgrade, the Wren has absolutely proven itself and then some.
I took the Wren into the San Juans in winter, where conditions were cold, snowy, and exactly what you want a bivy to be tested in. The waterproof bathtub floor did its job flawlessly—snow melt and ground moisture were complete non-issues. The water-resistant upper fabric shed falling snow without any wetting-through, and most impressively, the breathability was outstanding.
Condensation is always my biggest concern with a bivy, especially on winter trips, and the Wren nailed it. Even after long, cold nights, there was no internal moisture buildup and my sleeping bag stayed completely dry. That balance of weather protection and airflow is hard to get right, and Katabatic absolutely did.
The build quality feels bombproof without being heavy or overbuilt, and it packs down easily for winter alpine objectives. This bivy inspires confidence—something you really appreciate when you’re committed deep in the mountains.
Losing my Piñon was a bummer, but after using the Wren in real winter conditions, I can say this was a meaningful upgrade. If you’re looking for a reliable, breathable, winter-capable bivy, the Wren delivers exactly what it promises.

Works great as an outer layer for alpha direct hoodie. Soft touch and seems to breath well. Fit is spot on. Craftsmanship is superb!

The 20 denier material makes this jacket ideal for thruhiking, it'll take a beating and keep going. Super warm, tons of loft, worth every penny.

I have only ONE wish after buying this jacket…I wish I had known about this company and their excellent gear earlier. I’ve owned many different light and mid-
weight down jackets and of all the known brands I’ve owned (not knocking them just stating my opinion)…Arcteryx, Montbell, RAB, Mountain Hardwear, this is my favorite. Why, you ask? Fit, finish and feel! It’s the most comfortable to me and it definitely keeps me warmer than the others. Next up for me is ditching my bag for a nice KG Flex quilt.