A belt loop is a small, typically fabric or leather loop attached to a garment, specifically designed to hold and guide the end of a belt. The primary function of a belt loop is to help maintain the position of the belt around the wearer's waist or hips, preventing it from shifting or slipping out of place during normal movement or activity. By securely anchoring the belt within the loops, it ensures a snug and consistent fit, enhancing comfort and appearance.