Rick Owens Pillow Granola Mules pair a thick, padded hair-on calf strap with a sculpted 'granola' footbed for slip-on comfort and a treaded rubber sole. Key attributes: Black | Calf hair | Treaded rubber sole | Slip-on | Open back | Branded footbed | Padded wide front strap | Round open toe | Granola sculpted footbed | Shark‑toothed/treaded sole | Composition & care: Outer: Calf hair (hair-on leather) | Lining: Calf leather | Sole: Rubber