We created the Petrel to keep women warm on the coldest of three-season trips. After years of sleeping in unisex sleeping bags, the women of Feathered Friends turned their wish list into a reality with our women’s line. Featuring extra fill in the footbox and chest, more room in the elbows and knees, and shorter lengths, our women’s bags work great for anyone looking for an alternative to the traditional mummy shape. Filled with premium 900+ fill power goose down, the Petrel YF is an excellent choice for spring and fall adventures, as well as a popular summer bag for cold sleepers and high elevations.
Our YF line of sleeping bags feature a lightweight, 100% nylon Pertex® Quantum® shell that uses yarns with unique Y-shaped filaments to create a fabric with increased downproofing and water beading properties, even after years of use and washing.
YF: YFuse. Pertex Quantum® 20 denier mini-ripstop fabric
Details
- Mummy shape with #5 YKK two-way, separating zipper with locking sliders
- Full draft collar provides an extra cushion of down around the neck to trap heat
- Trapezoidal footbox allows feet to fall in a natural pose without compressing the sides
- Continuous baffles let you position the insulation where you need it
- 3D contoured hood opens wide for warm nights and cinches tight when the temps start to drop
- Generous draft tube prevents cold air from seeping past the zipper
- Includes storage bag & stuff sack
Additional Info
Ideal Sleeper Height |
Small 5' 3" / 160 cm Med 5' 9" / 175 cm |
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Dimensions | 57" shoulder / 62" elbow / 59" hip / 41" footbox |
Zipper | Right Side |
Shell | Pertex® YFuse® |
Lining | 20d 37g/m² nylon taffeta made from NetPlus® post-consumer recycled nylon. NetPlus® helps reduce ocean plastic pollution by incentivizing fishing communities to turn in end-of-life nets for recycling before potentially ending up in the environment. |
Fill Power | 900+ Goose Down |
Origin | Made in Seattle, USA of imported materials |
Temp Rating | 10ºF / -12.2ºC |
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Fill Weight |
Small 1 lb 4 oz / 565 g Med 1 lb 5 oz / 595 g |
Average Weight |
Small 2 lb 0.2 oz / 912 g Med 2 lb 1.3 oz / 974 g |
Packed Size | 11L |
NetPlus® is made from recycled fishing nets, creating a downproof yarn that also helps cut energy use during manufacturing. Compared to conventional nylon fabrics, NetPlus® reduces water use by up to 70% and overall energy consumption by up to 68%.


Pertex® YFuse® (YF) filaments have a uniquely engineered Y form, tightly interlocking to create highly stable yarn structures.
Whereas conventional, circular sectioned filaments lie loosely side by side, Y Fuse filaments interlock tightly in layers to create a unified yarn structure. Fabrics created using Y Fuse yarns have greatly enhanced downproof and water beading properties.
Our sleeping bags contain 100% Responsible Down Standard (RDS) down fill.
Certified to the Responsible Down Standard by TE-00118388.
Reviews
- Reviews
- Questions

Bought for my 12 yr old daughter to grow into. Consequently I can't ***** fit, but based on her feedback the bag is super warm. She's a cold sleeperr, so its no doubt overkill for most people in SE Australia during winter except in the mountains. For her its great; the fabric is lovely to the touch, which, combined with the warmth lends the bag an extremely cozy feeling. Love the colour too. This is my fourth bag from Feathered Friends and all have been really satisfying purchases.

I absolutely love my sleeping bag I sleep cold, and this kept me perfectly warm.

Super SCHÖNER SCHLAFSACK
Sehr schöner Schlafsack von sehr guter Qualität bin sehr zufrieden und würde ihn immer wieder kaufen und empfehlen.

Sheer luxurious comfort
I am 5’4”, 140 and bought a small. I have taken this bag on two backpacking trips now. I am in love with it. This time I came home and slept in it because it is so comfy and warm. The zipper on the bottom is great for letting a little air in if it’s warm and the hood and down flap kept were so snug in higher elevations. Aside from the fact that it is so well designed, it just feels like being wrapped in a warm heavenly cloud.

Exceptional Warmth
I've used this bag on a 30-day mountaineering expedition. Kept me warm on the glaciers and some windy nights bivvyed out in this bag in. I was toasty warm and very happy throughout the whole night. It packs down well and is really comfortable. I really like the cinching neck collar. the ability to keep warm air down in the bag and move around with out any of it escaping is dreamy!