Both bags are like new (tags removed) and come with the original stuff sack and storage sack. Bought both bags new in 2018. They are the newest model with the full zip on the left side, and the 1/4 zip on the right side. Both bags have 800 down defender fill. Both are size regular. Hydrogen weighs 23oz, Atom weighs 20oz.

- $250 for the Hydrogen
- $215 for the Atom