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The Canon™-40 is built to keep you warm and protected in the most extreme conditions. Constructed with our unique new patent pending Thermo Gills™, the Canon™ -40 allows for temperature regulation, improving your night’s sleep under a wider range of conditions. No other mountaineering bag offers the same comfort from base camp to summit.


A perfect companion to NEMO’s Extreme Conditions Technology (E.C.T.) line of tents, the Canon™ -40 will keep you warm and protected in the harshest climates on Earth. Canon™ -40 is designed to hug your body and move with you during the night. The entire shell of the bag is built with our OSMO™ DT waterproof/ breathable fabric, ultimate protection for the 850 fill power goose down insulation. Unlike any other cold weather mountaineering bag on the market, which are often too warm for base camp conditions, Canon™ -40 features our patent pending Thermo Gills™ that allow you to adjust the extreme insulating ability of the bag when conditions are less severe.

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.
Adjustable Thermo Gills™ vent body heat at your core without letting cold air rush in.





Temperature Rating -40F / -40C
Fill Type 850 Fill Power Goose Down
Fill Weight 45 oz / 1280 g
Minimum Weight 4 lbs, 7 oz / 2.0 kg
Shape Mummy
Capacity 1P
Fits Up To 6'0" / 183 cm
Shoulder Girth 62 in / 157 cm
Hip Girth 58 in / 147 cm
Knee Girth 54 in / 138 cm
Pad Sleeve Dimension N/A
Packed Size 15 x 12 in / 38 x 30 cm
Compressed Volume 16.4 L
Zipper Location Center
Shell Fabric 15D OSMO™ DT W/B + DWR
Footbox Fabric 15D OSMO™ DT W/B + DWR
Lining Fabric 20D Nylon Mini Ripstop + DWR
Color Granite/Magma