A backpack is a versatile and practical bag designed to be carried on the back, supported by two shoulder straps. It is commonly used by students, travelers, hikers, and commuters to carry books, clothes, electronic devices, and other essentials. Backpacks come in various sizes, colors, and materials, often featuring multiple compartments for better organization. Their ergonomic design helps distribute weight evenly across the shoulders, making them comfortable to carry for extended periods. Whether for school, travel, or outdoor adventures, a backpack is an essential companion for everyday use.