oil dye culatta leather utility keychain clipthe utility keychain has been hand cut from a butter soft full grain washed 1. 6mm vegetable tanned albino culatta leather. culatta is a special cut combined of the rear just above the cordovan, the belly middles and the hind shanks, offering a dense structure, tight grain and medium to firm temper. vegetable tanning is a traditional method of treating the hide using natural extracts such as tree bark, for a truly artisanal and robust finish. the