If he'd gone and bought a cowboy hat in the last few weeks, they would've at least attempted to sell him a summer hat (straw) instead of a winter hat (felt). Not definitive but strange.
Considering the jacket, I doubt this is a summer outfit. Assuming it’s even remotely real, of course.
Also… I don’t really feel ‘no felt in summer’ to be a hard rule. I picked up an Australian Akubra Coolabah hat in felt a couple months ago and am currently wearing it in 82 F / 28 C weather. Plenty of actual Australians wear felt Akubras year round. It’s like bringing your own giant tree with you in terms of shade.
Coming from poly/cotton boonies, the felt Akubra is perfectly fine to wear for me. It helps that it’s a light color and properly vented, of course. Absolutely love the hat and will buy another eventually.
Edit: Please read what I wrote before replying. Texas isn't a desert does not mean Texas has no desert. 90±% of the state is not desert, including where the vast majority of people live.
Yeah and that's not where the people or cattle live, minus El Paso. Texas is <10% desert. To act like the whole state is a desert is straight up wrong, yet annoyingly common for people who have never been here.