The PB-CANONEF17-40 padded Lens Cup protects a Canon 17-40 Lens or other fragile accessories during transport.  The Lens Cup provides an extra level of protection for the delicate lens while it's inside the case.  Go Shoot Ready� by removing the Lens Cup and carrying it using the durable handle.
 
The Lens Cup is constructed using durable 400-denier nylon material with a Soft Veltex Interior. Foam-padded frame reinforced by a thin layer of plastic.  The zippered opening features a long-lasting YKK� zipper.