pogoss faces

[pogoss]

Hi, I used to make faces for PES and I'm planning to start doing EAFC from now on but I would like ask some questions.
I'll start with the hair cap in the 3d model, is it a must have thing or can I delete it ? any one has an idea about what it is used for ?

 

[Juan Carlitos Hechavarria]

I play fifa 14 but I think it must be the eyebrows and something else that I don't know yet