Originally Posted by
Coffee
I had an Arc Blast but returned it for a few reasons, mainly due to difficulty with my canister. I could get the canister into the pack and below the main crossbar support only when un-arc-ed. And it was then hard to arc the pack once the canister was inside. If I arc-ed the pack prior to attempting to insert my canister, it would only fit in the top of the backpack and it threw my weight distribution off. It seems like a wonderful pack for use without a canister, but I wanted it specifically for trips including the Sierra Nevada.