Dress Blues, shower shoes and a light coat of oil.
Seriously, long pants, closed shoes, high-necked shirt (in the winter I wear a lot of flannel shirts and will ALWAYS have a t-shirt on underneath) and a hat...my Llama .45 throws brass straight up and over and I've had more than one bounce off my hat brim. Eyes and ears, of course.
When I take my wife to the range with me, I always make sure it's high neck shirts, closed shoes, hair in a ponytail and hat. She likes to wear cropped pants and that works okay. E&E, of course.
I like to tell a story of a time when I went to the range and a guy who was with another group decided to watch me shoot my Ruger Mark II. He kept getting closer and closer until he was finally almost at my left hip pocket (I was shooting one-handed). Unless you're coaching me, stay the hell out from behind me and keep in my range of vision, OK?
I emptied the last mag on the Mark II and took a quick half-step to my left and grabbed my Llama. I slapped in a mag, let the slide go and fired seven as fast as I could, dropped the mag, reloaded and did it again. No hat, no glasses, earplugs only, he was doing the brass dance before I quit shooting. He continued to watch at a respectful distance after that...
Remember, brass--and not just your own--gets everywhere. I've read several posts where the poster had a piece of hot brass get between their shooting glasses and their eyelid. It's hats on for me.
ed