- Gender: Male
- Familiarity: I've used it once or twice and have initial impressions
I bought this for my Atmos 65 pack in the size M. It fits like a glove and packs down super small when not in use. It's one of those accessory items you don't want to be without on a trip where rain is a possibility. There is an overlap in sizing, so both the M and L would have fit my pack. I went with the M to save space when the cover isn't in use, and I'm glad I did. Even on a 65L pack, the cover leaves PLENTY of room to surround the pack and anything attached to the outside of it.