I put on a Hazmat suit, can't get the dang thing off now. It says use middle mouse button to unequip. I dont have a middle mouse button, just the scroll wheel, and while it depresses like a button it doesnt do anything. It doesnt look like there's a "unequip" key to remap to something else in the Key Bindings. I can't change my regular clothes until the hazmat suit is off, they are locked out.

Glad I found this. Same issue here. My clothes were locked, until I removed the clothing set (hazmat suit). As for no middle mouse button, there are programs to remap mouse buttons to keys. https://www.ghacks.net/2012/12/27/remap-your-mouse-buttons-on-windows/

Middle-click on hazmat suit (tall slot in bottom right) just like any other clothing. If you can't do it, it may be because of active quest (you can't take off suit during corpo prologue or The Heist mission for example) or it's bugged (surprise surprise...). Try reloading save or even restarting game to see if it helps. I seriously doubt saving with potential bug in effect would make it unfixable (such a thing never occured to me - restarting game always fixed an issue) but you may want to save to another manual slot as a precaution anyway.

Need this, I'm stuck with a "NEOPRENE DIVING SUIT (FROM JUDY)" and can't take it off. I did every quest that was active in my list and still can't take it off.