Top Grain Cowhide Biker Jacket. Crafted in cowhide, top grain supple leather. This cool leather jacket is the one investment piece you'll still be wearing 10 years from now. Moto silhouette adds a luxurious feel to this zippered jacket. Offset closure at the front and zippered pockets add a touch of edge to this top-of-the-line piece by Cocco-C.