Lightweight coveralls for the big and sweaty?

I live in South Louisiana, which is hot and humid much of the year. We may have some cool weather on Halloween, or we may have 80s with high humidity.

I just got a pair of Red Kap spruce green’s in and while they’re a great fit, I went by appearance and thought this was a lightweight coverall. It’s mostly polyester and is heavy and pretty warm.

I’m searching Amazon now for lightweight, 100% cotton coveralls that are close to film accurate. I’d greatly appreciate any brand suggestions anyone may have.

I can’t think of any particular brands that make 100% cotton coveralls; most are 65/35 polycotton. Fisher stripe versions of coveralls are technically 100% cotton, but they’re almost a denim which I doubt will be much better when it comes to heat. They’re also pretty abundant compared to the solid colored ones, and since they’re 100% cotton I’d imagine they’d take to dye much better.