There are irregular style and stitch on both sides.It gives it a nice shape on both sides.It makes the shoulder bag look more fashionable. Top Zipper Closure. Quality durable canvas material.Cotton handle, cotton strap, Metal zipper. Smooth nylon fabric lining. Large Capacity: 16.1”L * 14.9”H * 4.0”W inches. Inside: 1 secure zipper, 1 cell phone bag, 1 card bag. Back: 1 zipper pocket quick access phone, wallet and other items. Shoulder strap can freely adjust the length. It is also a handbag.Whether you are work, shopping, outdoor travel, going to school. This bag will be your best choice. Too many choices to choose, just follow your heart.