Sitka Aerolite Bag vs Marmot Helium 15?

[gostovp]

The Marmot Helieum 15 is currently on sale on Marmots webs site, but I currently have the Sitka AeroLite 30 bag. For Sept Archery elk is the Marmot worth me buying it considering what I already have? The Sitka and Marmot are about the same size and I do know one is synthetic the other is down. The Sitka bag does pack down well and I have a mil surp woobie as well if needed… the Marmot is a great deal just not sure if a huge upgrade

 

[AZ_Hunter_2000]

The Marmot Helieum 15 is currently on sale on Marmots webs site, but I currently have the Sitka AeroLite 30 bag. For Sept Archery elk is the Marmot worth me buying it considering what I already have? The Sitka and Marmot are about the same size and I do know one is synthetic the other is down. The Sitka bag does pack down well and I have a mil surp woobie as well if needed… the Marmot is a great deal just not sure if a huge upgrade

Looking at the comfort ratings, 30 for the Sitka and 22 for the Helium, it'd be a hard pass as there's not enough spread to make it worthwhile.

FYI, the Marmot is now showing out of stock.

 

[gostovp]

The Long version is still in stock.
But yeah it is only a 12 degree difference, the limit rating is 28 on the Sitka, and the marmot is 16.

 

[Desk Jockey]

FWIW - There are some how to videos on how to layer up the Sitka as part of a “system” to get to colder temps. I have used a poncho liner or Kifaru woombie to take my 20* bag to colder temps.