The Black Oak Riveted Calf Lined Leathers feature soft calf skin leather wrapped over a core of webbing, for a tactile, yet durable leather. These leathers feature 22 holes placed 5/8" apart for maximum adjustment. The Nylon webbing keeps these leathers from stretching, and they are finished with a riveted buckle. These leathers feature 22 holes placed 5/8" apart for maximum adjustment. 7/8" x 54".