Also, do ensure your suit and helmet meet ISO 17763. They _do not_ have to be NASA branded, but the cheap ebay knockoffs will be spotted. You may also be aske

Also, do ensure your suit and helmet meet ISO 17763. They _do not_ have to be NASA branded, but the cheap ebay knockoffs will be spotted. You may also be asked to use the suit in a vacuum negative pressure test to ensure it's compliant.