Pluton UL 40°

Big Agnes

  • $369.95

You've got ultralight adventuring down to a science, right? Your pack and 90% of its contents is totally dialed in for fast and light on-trail travel in warm temps, but one thing is weighing you down. Even in those warm summer months, as soon as you get up high or down low near water, that chilly quilt or bulky old bag you've been using since high school is not cutting it. The Pluton UL is a highly compressible sleeping bag filled with an incredibly lightweight and packable 850-fill DownTek„¢ insulation. It will keep you warm and keep your pack light, whether that's a backpack, bikepack or packraft.

Specs + Sizing

Bag Weight REG: 1lb / 454g / LONG: 1lb 3oz / 539g
Fill Weight REG: 8oz / 227g / LONG: 10oz / 283g
Compressed Bag Size REG: 4" x 5" / 10 x 13cm / LONG: 4.5" x 5" / 11 x 13cm
Stuff Sack Size REG: XXS 6" x 10" / XXS 15 x 27cm / LONG: XXS 6" x 10" / XXS 15 x 27cm


Crazylight minimalist mummy bag for your fast and light adventures

Highly compressible with water resistant 850 fill DownTek„¢

DownTek„¢ - a water repellent down that uses a PFC-Free, bluesign„¢ approved chemistry.

Minimalist hood with drawcord

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

Full-length zipper can be opened up for quilt use and provides easy temperature regulation

70" / 178cm YKK #3 locking zipper

Ergonomic footbox construction provides more loft and warmth

Two-way zipper

Zipper Garage 

Streamlined exterior loops for hang drying or storage

Mesh storage sack & nylon rip-stop stuff sack