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The Canon™ -40 allows for temperature regulation, improving your sleep under a wider range of conditions. No other mountaineering bag offers the same comfort from base camp to summit.

Temporarily Out of Stock
Adjustable Thermo Gills™ vent body heat at your core without letting cold air rush in.
Contrast color Arm zips open from the inside and outside of the bag.
The Stove Pipe™ Tunnel Hood, insulated with PrimaLoft, keeps a pocket of warm air near your face so breathing is comfortable in the bitter cold.
Zippered arm openings (Arm Zips) and a central zipper location let you enjoy the comfort and warmth of Canon -40 while eating a meal or prepping gear.
Images from the thermal image camera show the Thermal Gills™ in action. Opening the zippers on the outside of the bag allows heat to escape without allowing cold drafts.
NEMO testing trip. Franconia, New Hampshire.
The entire exterior of Canon™ -40 is constructed from OSMO™ DT waterproof/breathable fabric to protect you and your down from frost and moisture build-up.
Unique Toester Box™ construction reduces cold spots.
Canon -40 is filled with premium 850 fill power down. These down clusters trap layers of air for natural insulation while high loft ensures warmth and compressibility.
Rated 5 out of 5 by from In a league of its own! I haven't tried this bag down at -40 but it does compare favorably to a couple -20 bags I've owned over the years. The nylon is soft to the touch. The arm holes and "gills" work as advertised. It won't win any awards for compressibility, but it shouldn't be expected to. Its an expensive bag but the design, materials, and workmanship are top notch. I'd buy it again.
Date published: 2014-03-07
Rated 4 out of 5 by from Like it. Warm. The different innovative functionalities that are with this bag, are working quite good. As this is "the TOP model" some simple bits are not 100%. Inner fabric are to compromized with weight maybe, could be a touch more solid. Inner and outer fabric feels very comfy. The outer fabric seams to be good quality. I am missing a pocket for phone or flashlight or similar. The Velcro at the "canon" is to small, I have sewed on better Velcro landing on mine.Neck collar, is very small to be a -40 sleeping bag, even it is small it sort of works. Back hood adjustment string, I have not found it very useful.Generally I like the sleeping bag.
Date published: 2016-07-17
Rated 5 out of 5 by from Great bag! Used this on Denali and stayed comfortable from base camp to the upper mountain. This is now my primary winter bag and I just bought a second one for my wife. Lots of stains from trying to eat using the arm holes, but was great for reading during storm days.
Date published: 2015-04-04
Rated 4 out of 5 by from Good bag Overall a great bag. Lightweight for its rating. Zipper could be a bit beefier. Outer fabric is a bit weak. Prone to treating in the zipper. Supper warm even without thermal mat. Stayed warm even when wet. Wicked away moisture as advertised.
Date published: 2015-10-02
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