white culatta leather shopper bagthe open seam shopper bag has been hand cut from a butter soft full grain 1. 3mm vegetable tanned, washed and tumbled horse culatta leather with a visible layer of subdermal cordovan, in a crushed bone aniline dye treatment. 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