It was a difficult decision but I eventually settled on keeping the Isopack rather than the Expedition 500. Both bags seem very well made and quite useful. They also have many of the same features as they are meant to satisfy the same customer needs so it really all comes down to what you are needing in the particulars. For instance, if you are more concerned with branding then you may go with the Expedition as it is by a more well known/popular brand. If you are looking for a lot of space or need depth in the main compartment like I do then you will likely chose the Isobag as it's main compartment is deeper and a bit more roomy than the Expedition. If you are looking for a bag that comes with all the extras then you may want to go with the Expedition. Should you need to keep your meals cool for 12 hours or longer then you will likely go with the Isopack... its all about priorities. I made my choice because I loved the following about the Isopack:
Things I liked better about the Expedition:
I wanted to offer a quick comparison chart between the two bags as the last piece of this series. If you have any questions about the bags just let me know and I will do my best to answer them!