The Extraordinary Slick Shirt is exclusively and randomly available from Promethium Lockboxes.

Obtained FromEdit

Promethium Lockbox


The item was phased out with game update 26.


See alsoEdit

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.