Cow skin, or bovine leather when processed into leather, is the hide of cattle. It is one of the most widely used animal leathers and can be processed into many different finishes, weights and textures, from smooth leather to suede and nubuck. The term cow skin refers to the animal hide itself, while leather indicates that the hide has been tanned and processed for use as a material.

Founded in Warsaw in 2014 by Magda Butrym, the Polish brand combines contemporary femininity with references to Polish craftsmanship and fashion history. Its collections are known for sculptural silhouettes, draping, distinctive floral motifs and a strong emphasis on artisanal details, particularly in knitwear, leather goods and eveningwear.