THE NORTH FACE INFERNO -40F-40C

This is our warmest sleeping bag, bar none. We could stop there, but seeing as we pro-tested this bag in some of the world's coldest environments, we thought you'd want to know the details. It's packed with 800-fill of water-resistant, responsibly sourced ProDown™ in trapezoidal side baffles to prevent the down from migrating as you move. The hood has a cinch cord to seal out the cold and the draft collar and zip overlap minimise heat loss. Anti-compression pads help maintain loft, which equates to more warmth for you. And the generous cut allows for extra layers or a liner. Finally, it's made from hardwearing recycled nylon and features NeoVent Air™ on the hood, back and foot box to help minimise moisture build-up, so you stay dry and warm.

• Lofty down insulation maintains warmth in cold conditions.
• This product is made with recycled materials, which helps to reduce landfill waste and minimise its impact on nature.
• The Responsible Down Standard (RDS) ensures our goose down is ethically sourced, responsibly produced and traceable. Natural down delivers the highest warmth-to-weight ratio of any insulation.
• Fabric - Main Body | 15D Recycled Nylon Coated with Aluminised XReflex™ Treatment
• Fabric - Head & Footbox | 15D Recycled Nylon Ripstop with Breathable Coating
• Fabric - Lining | 30D Nylon Taffeta
• Insulation | 800-Fill ProDown™; Certified to the Responsible Down Standard (RDS) by Control Union
• Sizes | R,L / RH
• Temp Rating | -40°F / -40°C
• Total Weight | Reg: 1620 g / Long 1667 g
• Stuffsack Size | 35,1 cm x 15 cm x 45,7 cm
• Fill | 800-Fill ProDown™
• Shape | Mummy
• Compressed Size | 36,6 cm x 30 cm
• Max User Height | Reg: 183 cm / Long - 201 cm
• Shoulder Circumference | Reg: 163 cm / Long: 168 cm
• Hip Circumference | Reg: 152 cm / Long: 157 cm
• Foot Circumference | Reg: 112 cm / Long: 112 cm
• Full draft collar and integrated draft overlap for comfort and to help prevent heat loss
• Side half zip so the sleeper can make adjustments for temperature
• Trapezoidal side-chamber baffles reduce cold spots and retain loft
• Shock cords on the back of the bag attach to a sleeping pad so the pad will stay in place while you sleep
• Hood cinch-cord helps seal out the cold
• Fitted hood for more warmth and comfort
• Anti-compression pads for better clo values
• Vaulted footbox
• Waterproof and breathable NeoVent Air™ fabric helps protect the head and footbox
• Compression sack and storage sack included
• Down fill
• Recycled material
• Rds-certified down