I remember this one guy that would show up to the range in BDU woodland camo pants, OD green shirt, black issue boots, some sort of tactical vest, and a boonie hat. One of the regulars asked him if he was a cop or something and he wasn't. We left it at that.
My typical gear is a pair of old jeans, some sort of t-shirt, boots, and some sort of hat (baseball cap or boonie hat). Then I'll bring a sweatshirt if I'm going to shoot with a shooting jacket on (highpower positions). I do like to wear something bright so when I go out to 200 yards, the rangemaster can still see me easily and not call a hot range while I'm out there.
The reason why I wear the boots is because it helps when shooting offhand, but recently, the rattlers have started to crawl up to the firing line, so that gives me some added protection.