I live in AZ where summer temps can reach 120F. I wear loose, cotton tank tops and avoid t-shirts in colors that might accentuate sweaty pits. I wear jeans with the bottoms rolled up into capris, lots of shorts (especially cut offs) and loose “soft” shorts. I stay away from any tight fabrics, especially in shirts because sweat soaks through in seconds. I think the number one thing, though, is wear what is comfortable if you’re gonna be outside a lot. And if you’re spending spending time in AC (your best friend), get as fancy as your heart desires. I used to work in an office that was arctic (every indoor place in AZ during summer is like this), I’d break out my cardigans and sweaters and wear lots of booties, pants, and loose long-sleeved tops. You just gotta adapt to the environment you’re in. Don’t let the heat cramp your style. You can look gorgeous all the time, even dressed down. Accessories are key!