Black/grey spots on textures in Unity

[Meefa]

Hi. I'm trying to make my first avatar but im running into the problem of spots like here: http://prntscr.com/hzqcgk
Anyone knows what can be the cause?

[Blank]

Can't really see it, but it looks like it's a problem between the textures and mesh, have you tried uploading it to see if these disappear within game? (You can always delete and re-upload if it doesn't work).

[Meefa]

I'll try that. Thanks.

For comparision i'm adding normally looking one.

In Blender it looks like this: http://prntscr.com/hzqkk8

In Unity like this: http://prntscr.com/hzqkvc