There are various types of backpack plastic buckles, which may appear in different forms depending on their design and function. The choice of backpack plastic buckle depends on the overall design, purpose, target user group, and cost considerations of the backpack. Although plastic materials may not be as durable or high-end as metal materials in some aspects, their advantages in lightweight, cost-effectiveness, and diverse design make them one of the preferred materials for many backpack manufacturers.

Buckle style backpack buckle is the most common type of backpack buckle, usually made of metal or plastic, which is nested and fastened by two circular structures to achieve the opening and closing of the backpack. Its structure is simple and easy to operate, making it the preferred choice for many leisure and daily backpacks. Buckle style backpack buckles are usually made of metal material, which has stronger durability and anti-theft properties. They are locked through a rotation or pressing mechanism, and require specific operations to open, such as pressing the unlock button or rotating a specific angle, effectively preventing the backpack from accidentally opening.