This Viberg limited release is designed for fit foundations. It uses a small-lot batch of Asphalt Horsebutt from Maryam Tannery in a full-vegetable Lucida Vachetta tannage, with lanolin rolled on the grain to enhance flexibility and the natural shine of the dense hides. To make it even more extraordinary, this aniline drum-dyed Asphalt is a perfect warm charcoal that will patina beautifully and offer broad ensemble coordination, with corresponding tonal detailing and Ridgeway soles.