Hi!
I´m a little bit new to corona and have stucked my head into a hole where I can’t find a way out… 
I need to do a material like the headphones leather in the attached pic, I don’t know how to get that kind of saddle wrinkles from the inside and out, I only get the wrinkles all over the place… anyone how can help me out or point me in the right direction?
thanks in advance.
