Waist bags, also known as fanny packs, are small, portable bags designed to be worn around the waist. They typically feature an adjustable strap that allows the user to secure the bag comfortably. Waist bags are popular for their convenience, as they keep essentials like keys, phones, and wallets easily accessible while leaving hands free for other activities. These bags come in various styles, materials, and sizes, making them suitable for different occasions, from casual outings to outdoor adventures. Many waist bags are designed with multiple compartments for better organization, and some even include features like water resistance, making them practical for various lifestyles and environments.