Cinnabar -40˚

Technical, down fill traditional mummy bags designed for superior performance during the most demanding high-alpine expeditions

Our burliest expedition bag to date, the Cinnabar will quickly become your best buddy whether summitting 8000m peaks in the Himalayas or trekking across Antartica on a self-supported mission. Built with a superlight, high-tear strength shell, insulated with 850 fill power DownTek™ water-repellent down, and designed with body mapped, thermally efficient baffles, this bag has your back (and all other body parts) when conditions make that a necessity.
100% Guarantee


Our top priority is to provide customer service as stellar as the award-winning products we create. If one of our products does not perform to your satisfaction, contact our customer service team and we will help you find gear that fits your needs.
Cinnabar Series

Specs + Sizing

Bag WeightSmall: 4lb 6oz / 1.98kg / Regular: 4lb 10oz / 2.1kg / Long: 4lb 14oz / 2.21kg
Fill WeightSmall: 48oz / 1.36kg / Regular: 50oz / 1.42kg / Long: 52oz / 1.47kg
Compressed Bag SizeSmall: 10" x 8" / 25 x 20cm / Regular: 11" x 8.5" / 28 x 22cm / Long: 13" x 8.5" / 33 x 22cm
Stuff Sack SizeSmall: 10" x 21" / 25 x 53cm / Regular: 10" x 21" / 25 x 53cm / Long: 10" x 21" / 25 x 53cm
Sleeping Bag TypeTraditional Mummy Bags


Our warmest expedition bags for summiting 8000m peaks or self-supported missions across Antarctica

Specialized fit designed for sleeping in layers and changing inside the bag

Baffle shape maximizes loft while keeping liner and heat close to the body

Side-access zipper on opposite side of full zipper for quick-access and heat retention

Internal mesh stash pocket for phones and other little ditties 

Insulated tube along upper hood opening seals out drafts when cinched 

Oversized draft collar with adjustability

Ergonomic footbox with increased insulation

Interior bottom of footbox features Pertex® Quantum Pro fabric for durability and moisture management

Low-profile cordlock lets you un-cinch the hood with one hand

70" / 178cm YKK #5 anti-snag locking zipper for a smooth, quick zip

Zipper Garage

Interior fabric loops for sleeping bag liners

Streamlined exterior loops for hang drying or storage

Storage sack & stuff sack included 

Construction + Materials

Shell is Pertex® Quantum Pro nylon rip-stop

100% recycled Pertex® Quantum Pro combines a tightly woven face fabric with a microporous coating to deliver a high level of water resistance while remaining lightweight, soft and breathable

Lightweight polyester taffeta lining featuring a wick finish that spreads moisture out for quicker drying and optimal moisture management

850 fill DownTek™ repels water while maintaining insulating value - bluesign® Certified PFC free water repellent chemistry

Insotect Flow™ vertical baffles contour to your body to provide a more comfortable fit and keep you warmer

Here’s what other people think.

What’s in a Name?

Cinnabar, an ore that produces mercury used in thermometers, is often found at the base of volcanoes. Arguably one of the hottest places on Earth, we believe that once you cozy up in our Cinnabar Bag you will feel as if you were at the base of a volcano, without any of the risk.