Part of the character very dark in Unity3D

Hey guys, I’m having a problem with Unity3D or/and Blender. The character looks perfectly OK in Blender. But in Unity3D the character’s bra is very dark. I don’t know what could cause this, can someone give me a tip what could be wrong?

Blender:


Unity3D (notice her Bra):


//problem was in Unity - I had to reassign the material.