Dive bags are used to transport and store diving equipment, providing protection and organization for gear. They come in various sizes and styles, including backpacks, rolling bags, and duffel bags. Features may include padded compartments, waterproof materials, and multiple pockets for organizing accessories. Dive bags are designed to withstand the rigors of travel and frequent use, offering convenience and protection for expensive diving gear. Proper maintenance and cleaning of dive bags help extend their lifespan and ensure they remain functional and in good condition.