Coach Mens Backpack. SKU: CW415 ANT. Color: Anthracite. Size: L 22cm x W 8cm x H 31.5cm. Coach Hall 22 Metallic Backpack. This backpack features an internal zipper pocket, a cell phone pocket, a multi-purpose pocket, a zipper closure with fabric lining, a 5 cm handle height, an external zipper pocket, and an adjustable shoulder strap. 100% Metallic Leather.