Pro Tips - What to wear on a factory tour

Hairnets (and beard-nets) and Closed Toe Shoes on Huy Fond Foods Sriracha Tour

Many tours of industrial manufacturing or food production facilities have strict clothing guidelines.  Its a good idea to dress appropriately, nothing stinks more than getting turned away from a tour because you aren't wearing closed toed shoes.

• Closed toe shoes - always required.  Sandals, ballet flats and Croc's leave feet exposed to hazards.  Sneakers or flat/low heeled shoes without perforations are preferable.
• Steel toed boots - many industrial facilities require workers to wear steel toed boots, you may want to wear them to get a total behind the scenes view
• Long pants - protect your legs from sparks or splashes
• Shirts with sleeves - ditto
• Form fitting clothes - no loose flowing garments that could get caught in machinery
• Hair ties - long hair needs to be tied back 
• No hats - you may be asked to wear hairnets or hardhats and hats just get in the way
• No contacts - any place that has a risk of fumes will require that you don't wear contacts.  Fumes can get caught between the eyeball and the contacts.

You may be asked to wear PPE (personal protective equipment).  It is for both your safety and the protection of the product being manufactured.  In my experience you know that you are getting a good tour if you need to wear PPE.

• Hair nets - including beard nets for whiskered gentlemen
• Safety glasses
• Anti-static shoe covers
• Hardhats
• Earplugs

Have you ever been denied entry to a tour for attire requirements?  What has been the craziest attire requirement or PPE that you have seen on a tour?