Orno UL 0°

Technical, ultralight traditional mummy bags

Technical, ultralight traditional mummy bags

These technical ultralight bags are designed for adventures where every ounce counts, each nook and cranny in your pack is accounted for, and you depend on the performance of your sleeping bag like you would a harness, helmet, or beacon. 
$539.95 to $579.95
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.
$539.95 to $579.95

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Specs + Sizing

Bag WeightSmall: 2lb 3oz / 998g / Reg: 2lb 7oz / 1.11kg / Long: 2lb 9oz / 1.16kg
Fill WeightSmall: 26oz / 737g / Reg: 28oz / 793g / Long: 30oz / 850g
Compressed Bag SizeSmall: 7in x 7in / 18 x 18cm / Reg: 7in x 8in / 18 x 20cm / Long: 7in x 8in / 18 x 20cm
Stuff Sack SizeSmall: 7.5in x 15in / 19 x 38c/ Reg: 8in x 17.5in / 20 x 45cm / Long: 8in x 17.5in/ 20 x 45cm


Shape allows for light weight and increased thermal value

3-D anti-snag draft tube prevents heat loss along the zipper

Contoured hood baffles cradle the head for a more comfortable fit

Oversized interior anti-draft collar 

DownTek™ water repellent down repels water while maintaining insulating value

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

Minimal zipper cuts weight and reduces cold spots

Two-way zipper allows easy access at waist for climbing harness tie-in

Zipper Garage 

Interior fabric loops for sleeping bag liners

Streamlined exterior loops for hang drying or storage

Mesh storage sack & nylon stuff sack

Construction + Materials

Traditional mummy shape

Nylon rip-stop shell fabric with a water repellent finish 

Nylon rip-stop lining

Insotect Flow™ construction

850 fill DownTek™ water repellent down 

Body mapped baffle construction optimizes thermal efficiency

Vertically structured sidewalls integrating contoured baffles trap heat closer to the body

Ergonomic foot box construction provides more loft and warmth 

Ultralight high tenacity shell fabric

40"/102cm YKK #5 zipper 

Here’s what other people think.

What’s in a Name?

Orno Peak lies within the Flat Tops Wilderness southwest of Steamboat Springs. Standing at 12,138 ft. many hikers climb Orno while peak-bagging others like Pyramid Peak, Big Marvine, and Flat Top mountain. Throughout the wilderness are a series of lakes that make multi-day backpacking trips a most enjoyable adventure. Other names for Orno Peak include Mount Orno, Mullen Peak and Sawtooth Mountain.