I have the Purforts without steel toes and they are light as a feather; it's one of the many things I like about them.
They also do mens and womens' fit, but stores often have only one option in each size (usually women's up to 6 or 7, and men's above; I'm a 7, of course) and you have to ask for the other. For all I know might even do a wider foot version - it's worth asking.
I have narrow-ish feet and very chunky calves; I could never wear Hunters at all, couldn't get them on. I wear the men's Purforts in order to get the wider calves.
Otherwise, when the weather's cold, would legwarmers help you, Linda? By filling up the gaps in the leg part?