A backpack is a versatile and practical bag designed to be carried on one’s back using two shoulder straps. It is commonly used by students, travelers, hikers, and professionals for carrying books, laptops, clothes, and other essentials. Most backpacks come with multiple compartments for easy organization and accessibility. Made from durable materials like nylon, polyester, or canvas, backpacks offer comfort, convenience, and style, making them a popular choice for everyday use.