Hello everyone, I am posting on this community to solicit advice on avoiding heat stroke while not looking like a fool. Currently I own several 95% polyester 5% spandex short-sleeve button-ups as well as one 100% linen long-sleeve button-up. I find both to be quite suitable for hot weather, but would love suggestions that aren't T-shirts and button-ups. Additionally, what options are there for summer pants? And what actually looks good with shorts? When I wear them I look like a camp councilor - or worse, a kid attending summer camp. 
Feel free to discuss dresses and skirts as well, although I am personally not interested. Oh yes, and I suppose summer hats could be useful too. Thank you in advance.
This effect of linen works well if it is flowy, cuts that are very cloth to your skin mean there is not enough air moving around, this is why some tight linen suits don't feel as nice as the comfy flowy alternatives in high heat.
Also many linen suits are lined, sometimes even with poly, which makes them worse than useless compared to a light wool/silk lined suit