Nubuck

Nubuck is a calfskin leather sanded or buffed on the grain side to produce a velvet-like surface. Nubuck does not require waxing to maintain its original appearance; it’s kept by brushing and using a nap to maintain that look. The buffed leather allows the surface to have fibers simulating the look and feel of velvet or suede.

It is one of the most expensive types of leather.