Yampa 45°

Down fill Big Agnes System bags designed to excel in all conditions and provide more room than a mummy bag

Specs + Sizing

Bag WeightReg: 1lb 13oz / 822g / Long: 2lb 1oz / 935g
Fill WeightReg: 10.5oz / 297g / Long: 12.5oz / 355g
Compressed Bag SizeReg: 6in x 6.5in / 15 x 17cm / Long: 6in x 7in / 15 x 18cm
Stuff Sack SizeReg: 7.5in x 15in / 19 x 38cm / Long: 7.5in x 15in / 19 x 38cm


Design improves connection between pad sleeve and bag providing a roomier sleeping space without adding bulk

Free Range Hood design – gives you the freedom to lift your head while snuggled in the hood

Non-hooded design on Yampa is ideal for summer camping or use as an over bag 

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

Stretch fabric panel beneath hood creates a designated pillow pocket

DownTek™ water repellent down repels water while maintaining insulating value

Lightweight mini rip-stop micro fiber for high performance and a soft feel

Zipper Garage 

Mate together left and right zip bags

Interior fabric loops for sleeping bag liners

Exterior loops for hang drying or storage

Mesh storage sack & nylon stuff sack

Construction + Materials

Polyester mini rip-stop microfiber shell fabric with a water repellent finish

Polyester Taffetta lining 

Quilted construction

Sculpted contour allows the bag to drape around you, increasing insulation performance

650 fill DownTek™ water repellent down 

61"/155cm YKK #8 zipper

Tapered vaulted foot box creates wiggle room for your feet without creating large cold air pockets 

Integrated full pad sleeve creates a secure attachment to the bag

Rectangular shaped bag

Here’s what other people think.

What’s in a Name?

"Yampa" is as synonymous to Routt County as "Steamboat Springs". There are conflicting stories to the origin, though, and it depends on where and which old timer you ask: The Ute Indians referred to the present-day Yampa River as Bear River, and many mistakenly thought "yampa" was the Ute word for bear. The old ranchers referred to a wild onion as "yampa" even though it was actually in the carrot family. Finally, in 1907, the river name won out and was officially named the Yampa River replacing Bear River. The Egeria Park area adopted the name Yampa in 1886 when present-day Craig was so named before previously being called Yampa.