Is Damier.....

I think it'd be perfectly fine to use it all year around.

But out of curiousity, since we're on the subject, are there any LV bags that you think would be used strictly for s/s? Or f/w?

Yes, there are. They're under the Spring/Summer season or Fall/Winter season. I'd ask you sales associate at Louis Vuitton to help you out on this.