[Design description] Front panel with single-sided printing[Material description] Made of durable polyester fabric, with high-strength POM slider.[Product performance] Suitable for daily casual outings. The side pockets have elasticity and are anti-wrinkle. The entire material of the chest bag and the stressed areas have been reinforced by a mallet machine, enhancing the durability of the chest bag. The product adopts ergonomic design, with a two-way hook-and-loop fastener that allows the shoulder strap to be adjusted on both sides, providing the best comfort for your shoulders, back, and chest. The shoulder strap length can be adjusted freely, making it convenient for you to access any items during use.[Applicable places] Outdoor sports, shopping places, short trips, park use.[Accessories structure] Small size, large capacity. Dimensions (inches): 7.5" * 15.25" * 3.25" (width * height * thickness). The front diagonal zipper pocket is convenient for carrying power banks, USB drives, etc. The main zipper pocket is convenient for carrying mobile phones, tablets, daily necessities, etc. The internal design is humanized, with a dedicated key ring and two pockets on each side for storing tissues, sunglasses, and other items.[Special note] Due to different measurement methods, an error within 1-8317 cm in the size data is considered normal.