Mammut Protect Down Sleeping Bag -18C

Regular price $644.00 Save £-449.00

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NEW! - Comes with Eye Mask 

Extreme activities, extreme innovation: Protect Down Bag -18C.

The sleeping bag for maximum comfort in extreme situations. The head and foot areas feature a waterproof membrane. More capacity inside for greater comfort. Central zipper for climate regulation. Special material to minimize noises. Down ensures a light weight and small packing volume. Protect Down Bag -18C, to sleep as comfortably as in your own bed despite extreme cold.

Delivery 5-7 days. For Shipping costs outside the UK, please email us at 

Material & Technology

• Membrane (B2B): 100% Polyurethane

• Main Fabric 2 - Face Material (B2B): 100% Polyester • Main Fabric 2 (B2B): Polyester Warp Knit

• Main Fabric 1 - Face Material (B2B): 100% Polyamide • Lining 1 - Face Material (B2B): 100% Polyester

Size L

Diameter (compressed): [cm]29

Height (compressed:) [cm]30.5

Total weight without stuff bag: [g]1700

Zipper length: [cm]137

Zipper side: Middle

Fill weight;  [g]950

Cut; Basic


90% Grey duck down|10% Grey duck feather

Lining: 100% Polyester

Lining 2: 55% Polyamide|45% Polyester

Main Fabric: 100% Polyamide

Membrane: 00% Polyurethane


  • Restorative sleep thanks to a newly developed sleeping bag shape

• Intuitive climate regulation with a central 2-way zipper

• Comfortable, soft material in the hood reduces noise and increases comfort

• Including deep sleep mask and earplugs to reduce light and noises

• Easy-to-use magnetic closure on the insulation collar

• Improved YKK zipper prevents jamming of material

• Internal pocket to store valuables

• Supplied with a packing bag

• Supplied with a storage bag

• Drawstring for easy adjustment of the hood and insulation collar

• 700 cuin fill power with ethically procured and certified RDS down

• Revised anatomical foot box for greater comfort without extra weight

• Zipper garage reduces cold areas at the end of the zipper

• Insulated covering along the zipper to protect from cold bridges and enhance climate comfort

Insulation chamber around the hood opening to protect from cold and wind • PFC-free DWR treatment

• Lining made from 100% recycled polyester

• Cut: Basic

• Comport temperature in °C (EN 13537:2012): -10 °C

• Warm collar: Yes

• Comport temperature limit in °C (EN 13537:2012): -18 °C

• Comport temperature in °F (EN 13537:2012): 14 °F

• Extreme temperature in °C (EN 13537:2012): -40 °C

• Comport temperature limit in °F (EN 13537:2012): -1 °F

• Wind baffle zipper: true

• Extreme temperature in °F (EN 13537:2012): -40 °F

Mammut Protect Down Sleeping bag
Mammut Protect Down Sleeping bag
Mammut Protect Down Sleeping bag
Mammut Protect Down Sleeping bag
Mammut Protect Down Sleeping bag
Mammut Protect Down Sleeping bag