Zerogram 850fp Pertex Sleeping Bags
Zerogram 850fp Pertex Sleeping Bags

Winter-Ready Sleeping Bags

Made for lightweight backpacking, mountaineering, and any time you need to stay warm in the wild, these Zerogram sleeping bags come in four models with EN comfort limits ranging from 26.6 to -5.8 degrees Fahrenheit. Each has a Pertex shell and 850-fill-power DownTek ZeroPFC goose down, which is water-repellent, fluorocarbon-free, and DWR-coated to stay dry 10 times longer than untreated down.

Note: This drop’s base price is for the High Sierra NX. At checkout, you can opt for the White Wolf NX (+ $50), the Cholatse NX (+ $180), or the Diamir EX (+ $290).

Zerogram 850fp Pertex Sleeping Bags

Which One Is Right for You?

In each of these sleeping bags, vertical thermal channels and FlowGate technology ensures body heat is evenly distributed, while special Y-shaped filaments help the fiber structure hold its form wash after wash. The draft color is microfleece lined on one side for supreme comfort, and is highly contoured to trap heat inside. The High Sierra NX is the lightest of the bunch at 33.2 ounces and a 15.8º F rating. For more warmth while backpacking, opt for the 40.9-ounce White Wolf NX. If you’re planning on alpine expeditions, consider the Cholatse NX, or for the most extreme adventures, the Diameter EX. 

Zerogram 850fp Pertex Sleeping Bags
Zerogram 850fp Pertex Sleeping Bags
Zerogram 850fp Pertex Sleeping Bags
Zerogram 850fp Pertex Sleeping Bags
Zerogram 850fp Pertex Sleeping Bags

About Zerogram

Founded in 2011 in Seoul, South Korea, Zerogram draws inspiration from naturalist John Muir and other 19th-century outdoor pioneers. The company’s philosophy is rooted in lightness—both in the way we pack our bags and the way we treat our planet’s resources. As a result, the product line features lightweight, minimalist, innovative designs for tents, sleeping bags, and other accessories. Zerogram takes its name from the idea of zero weight: “Though, in theory, there is no material that weighs nothing, we dream of developing weightless equipment.”

Zerogram 850fp Pertex Sleeping Bags
Zerogram 850fp Pertex Sleeping Bags

Style Options

Zerogram 850fp Pertex Sleeping Bags
High Sierra NX
White Wolf NX
Cholatse NX
Diamir EX

Specs

  • Zerogram
  • Insulation: 850 fp water-repellent DownTek goose down
  • Lining: Downproof 20D nylon
  • Shell: Varies by model
  • Length fits up to: 74.8 in (190 cm)
  • Shoulder girth: 63 in (160 cm)
  • Hip girth: 49.2 in (125 cm)
  • Final sale

High Sierra NX

  • EN comfort limit: 26.6º F (-3º C)
  • EN lower limit: 15.8º F (-9º C)
  • EN extreme limit: -18.4º F (-28º C)
  • Shell: Pertex Quantum
  • Stuff sack dimensions: 11 x 7.5 in (28 x 19 cm)
  • Stuff sack volume: 12 L (732 cu in)
  • Compressed volume: 6 L (366 cu in)
  • Fill weight: 15.9 oz (450 g)
  • Total weight: 33.2 oz (940 g)

White Wolf NX

  • EN comfort limit: 21.2º F (-6º C)
  • EN lower limit: 8.6º F (-13º C)
  • EN extreme limit: -27.4º F (-33º C)
  • Shell: Pertex Endurance
  • Stuff sack dimensions: 11 x 7.5 in (28 x 19 cm)
  • Stuff sack volume: 16 L (976 cu in)
  • Compressed volume: 8 L (488 cu in)
  • Fill weight: 24 oz (680 g)
  • Total weight: 40.9 oz (1,160 g)

Cholatse NX

  • EN comfort limit: 12.2º F (-11º C)
  • EN lower limit: -2.2º F (-19º C)
  • EN extreme limit: -43.6º F (-42º C)
  • Shell: Pertex Endurance
  • Stuff sack dimensions: 13.8 x 9.8 in (35 x 25 cm)
  • Stuff sack volume: 24 L (1,465 cu in)
  • Compressed volume: 15 L (915 cu in)
  • Fill weight: 38.8 oz (1,100 g)
  • Total weight: 55.4 oz (1,570 g)

Diamir EX

  • EN comfort limit: -5.8º F (-21º C)
  • EN lower limit: -24º F (-31º C)
  • EN extreme limit: -69º F (-56º C)
  • Shell: Pertex Shield+ (waterproof/breathable)
  • Stuff sack dimensions: 14.6 x 11 in (37 x 28 cm)
  • Stuff sack volume: 28 L (1,709 cu in)
  • Compressed volume: 18 L (1,098 cu in)
  • Fill weight: 44 oz (1,250 g)
  • Total weight: 63.3 oz (1,795 g)

Included

  • Mesh storage bag
  • Compression stuff sack

Shipping

All orders will be shipped by Massdrop.

Estimated ship date is July 22, 2016 PT.

After the drop ends, payment will be collected. To deliver the best value to the group the request will then be submitted to the vendor up front, making all sales final. Be sure to check the discussion page for updates.