A "Hidden Pocket" refers to a concealed compartment within clothing or bags designed to store small items securely. These pockets are often discreetly sewn into seams or linings, making them less visible to others. They are popular in various fashion items, including jackets, pants, and bags, providing a practical solution for carrying valuables like money, keys, or cards. The concept of hidden pockets is also utilized in outdoor gear and travel accessories, enhancing security for travelers. By keeping important items out of sight, hidden pockets can help prevent theft and loss, making them a valuable feature for those on the go.