Something about shading/shaders

[Ribofunq⭐ (Lord/Master)]

Hey guys,

I'm a new in modeling and,
I have a few questons about shaders in tf2,
Now I'm going to upload my finally created hat for pyro, but I don't know anything about shaders and how to work with it.

My first hat is a little specific - it looks like a haircut under pyro's suit.
So, I've saw his suit and it made from diffrent material, not like other wear in tf2, it's shiny and rubber.

Question: how to apply that type of material on my hat?
Now that hat looks like matted on head, and I afraid of that look into game if I'll go to upload it.

Sorry for my bad english,

Greetings from Ukraine!