A shoe is a type of footwear designed to protect and comfort the foot while walking or running. Shoes come in various styles, including sneakers, boots, and sandals, each serving different purposes and occasions. They are typically made from materials like leather, rubber, or fabric, providing support and traction. Shoes are often categorized by their function, such as athletic shoes for sports, formal shoes for events, and casual shoes for everyday wear. Proper shoe fit is important for foot health, as ill-fitting shoes can lead to discomfort or injury.