①. Product Details: Lightweight, stylish and simple, modern, colorful urban backpack. This backpack is designed with light weight, convenience and large capacity as the main features, and its design is stylish and simple, which is eye - catching. It is an interpretation of urban modern style, suitable for daily commuting and outdoor leisure. The backpack is reasonably designed and can be freely stored and classified to store daily necessities. At the same time, it is splash - proof and scratch - proof, easy to maintain and resistant to rain. The special thing is that the backpack is equipped with a convenient USB port, which can ensure the long - term battery life of mobile phones, making it easier to go out. ②. Backpack features: - Front zipper pocket - Rear zipper pocket - Sub - pocket - Both sides of the water bottle pocket ③. Function: - Large capacity - Multi - function - Scratch and wear - resistant - Splash - resistant ④. Product specifications: - Name: leisure backpack - Color: black gray - Weight: 0.51 kg - Material: wear - resistant material - Function: backpack - Lining: fabric - Structure: front zipper pocket, back zipper pocket, additional pocket, computer compartment pocket, main pocket, etc. ⑤. Note: The product is measured manually, and an error of 1 - 3 cm is normal.