Part of object turning darker then the rest

I made a character, but a part of it’s trousers turns darker then the rest when UV-mapping.
It has now texture jet, it is the same object and I did turn on the check 'Double sided.
What could be wrong?

You have not supplied a link to your .blend file !!!
Please do so for ALL support questions

Check you have not applied multiple materials
Check face normals are all consistent
Remove any faces inside the mesh
Remove any double vertices (W / remove doubles)
Recalculate normals (Ctrl+N)

Thanks, recalculating normals worked. :slight_smile:
Next time I’ll add a .blend file, didn’t know it was possible.