Getting a new belt this week

Have a pretty long trip planned for the end of this month and am gonna buy a belt to throw in the back as a spare. I’ve heard a few here get the commander belts for the 1000 as opposed to the stock outlander belts. Any advantage to this? Not interested in Gates or other brands as I think the BRP belts are good enough. Just wondering about getting a side by side belt instead.

Cheers.