This is our most iconic jacket with the hidden and then revealed studs on this ST APE Perfecto leather biker jacket. It is made out of a very soft, yet heavy lamb Drum Dyed leather. Details include clean stitching, and unique branded hardware & trimmings. We have used an unbleached cotton body lining for better breathability, and a nylon sleeve lining for added ease of putting on your jacket. Only a few are genius.