What is the “Set Style” button for?

Question

What is the Set Style button for in the TF2 backpack?

Answer 1

Some hats and misc items have multiple styles to them. Set Style switches between them.

I'll post a list of these items shortly, as well as a screenshot or two.

These items are:

Added 2011/04/14:

• Googly Gazer
• Ghastlier Gibus
• Scotsman's Stove Pipe
• Treasure Hat
• Hat of Undeniable Wealth And Respect

Added 2011/04/20:

• Grimme Hatte (I think)
• Pyromancer's Mask
• Troublemaker's Tossle Cap

Added 2011/05/05:

• Aperture Labs Hard Hat (formerly [classified])
• Blighted Beak

Some of these are different models, some of these are just different paint jobs.

Here is my Team Spirit colored Pyromancer's Mask with the paint changes:

Here is my Ghastlier Gibus with model changes: