Pinnacle Soft Riveted Buckle Leathers 60"These stirrup leathers are made of calf leather which give additional grip, while offering added strength and durability with a reinforced inner layer of nylon web, as well as preventing stretching. They are designed to prevent rubbing and scratching on even the softest leather saddles. Made of an extra soft and supple calf leather with a reinforced inner layer of nylon web to prevent stretching Calf leather offers a nice grip and is milder on your