The Atom's ultra light design and high quality down have given it cult status among alpinists as a bivvy bag on extreme climbs. A great bag for warm-weather nights on casual summer road trips, the full update , with changes like curved baffles that reduce shifting down and a fold-down second zipper for ventilation , makes this bag even more comfortable than before.
Pertex 20d 100% Nylon R/S 1.03oz/yd
30d 100% Nylon DWR 1.09 oz/yd
800+ Fill Power Goose Down
Comfort: 44.1°F / 6.7°C | Lower Limit: 35.4°F / 1.9°C | Extreme: 8.4°F / -13.1°C
61in (154.9cm) x 56in (142.2cm) x 39in (99.1cm)
1lbs 4.7oz (589g)