Bristle calf is a hair-on chrome-tanned leather, with a salt and pepper pattern printed.
Due to its textured nature and open pores, suede may become dirty and quickly absorb liquids. Stains, scratches and patina belong to the normal ageing process of your item. Differences in tone, shading, gradation, and the possible alterations of the material are to be regarded as a sign of quality.
Most stains and dirts can be removed by using a special brush for leather.