New for Fall 2025: The Vireo UL gets all-new Pertex® Quantum Pro® shell fabric + Pertex® Diamond Fuse lining fabric in the footbox, plus new and familiar colors
The Vireo was designed with a single purpose in mind; fast and light alpine climbs where every gram counts. With no hood, no zipper and a variable fill (the lower half is rated at 25ºF / -4ºC, the upper half 45ºF / 7ºC) the Vireo shaves every last ounce. For maximum efficiency and warmth, pair the bag with a down jacket to not only keep you cozy but also minimize extra gear and weight when it matters most. UL: Ultralight. Pertex® Quantum Pro® water-resistant/breathable fabric with 950+ Fill Power DownBest Uses: Ultralight Backpacking, Alpinism, Emergency Bivy
Details
- No zipper to conserve weight and bulk
- Drawcord on open end to cinch off apertures
- Pertex® Diamond Fuse 15 denier footbox that offers more abrasion protection for more nights at camp
- Designed to be worn with a down jacket for upper-body warmth
- Differential fills – lower half is filled to 25ºF / -4ºC while the top half is filled to 45ºF / 7ºC
- Stuff sack and cotton storage bag included
Additional Info
| Weight | N/A |
|---|---|
| Length | 68 Inch, 74 Inch |
| Color | Flame, Cerulean, Undyed |
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