Pluton UL 40

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Incredibly light and packable with 850-fill down

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 Big Agnes Pluton UL 40 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.


• Highly compressible, crazylight minimalist mummy bag for your fast and light adventures
• 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 foot-box construction provides more loft and warmth
• Two-way zipper
• Zipper Garage
• Streamlined exterior loops for hang drying or storage
• Storage sack & stuff sack included

100% recycled Pertex® Quantum uses a tightly woven structure made from incredibly fine yarns, making a light and soft fabric that allows insulation to fully loft and maximize thermal efficiency

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

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