Culture
Dwarf-goliaths are known as ervas, or half-bloods, and come in a variety of shapes and sizes, though the stocky build, grey skin, and facial hair no matter gender, are almost a certainty.
Northern hair
To the north, many dwarves and ervas, and the few goliaths who possess hair, have a strong tradition to never cut their hair shorter than to the waist. This is a sign of pride and that they have done nothing wrong for a long time. When the hair is cut short, they have committed a serious crime and are viewed differently than the other members of the village. Distrust and avoidance is often seen if somebody's hair is cut short. An almost bald head is met with complete avoidance and can be seen as a social banishment which many see as their cue to leave town until their hair has grown back. This hair cut is not taken lightly and has significant cultural meaning.
Some choose to remove all their hair after this and play it off as an erva with no hair in a new town, but that is a dangerous lie to live and few dare try.
Sexual Dimorphism
The dimorphism in Ervas follow either goliaths or dwarves quite closely.
This means that deep voices, lots of facial hair (including eye brows), and the same body type and density can be expected from them.
It does, however, also mean that the goliath heritage can give the ervas either no hair on the head or are balding really early, down to beginning the process in puberty.