The vests are made of racka sheepskins. Racka (pronounced Rass Ka) sheepskins come from a special breed of Hungarian sheep. Racka sheep look like angora goat with unusual spiral-shaped horns. They look like angora goats but their wool is more sheep-like and softer. Their wool is long and appears in two general types: a cream wool with light brown faces and legs, and a black variation.
Racka sheep are not an endangered species and are not subject to USFWS and CITES controls.