
Feathered Friends · Sleeping Bags
The Vireo UL is designed for fast and light alpine climbs. It features a Pertex® Quantum Pro® water-resistant, breathable shell and a Pertex® Diamond Fuse abrasion-resistant footbox. The bag lacks a zipper and hood to save weight and includes differential fill ratings: 25ºF (-4ºC) on the lower half and 45ºF (7ºC) on the upper half. It pairs well with a down jacket for added warmth. The 950+ fill power goose down provides ultralight insulation.