When its not full of food or other junk I can put 2 insulated quart sized cases in the top section of mine.
They eat up allot of the space inside but you can usually fit 2 in one depending on your bag/frame
Neve-r-rest might have something to add to this...
Thank You. My frame bag does indeed have one of those top sections. Seeing as it was hand crafted in Alaska by the finest of artisans and constructed of the most durable of materials I'm sure it will work perfect.