US Patent 7120937 Headgear with hidden compartment

A cap (1), preferably in the form of a baseball cap, including a hood (3) with a hood edge (33, 34), as well as a lining (4) which extends along at least a part of the inner surface of the cap (3). The lining (4) has a lining part (41) which is fixed to the hood (3), and at least one edge part (42) which is loose from the hood (3). The loose lining edge part (42) is provided with a flexible reinforcement member (50), for example a whalebone.