PVC Comfortable: Soft and comfortable shoulder straps, carrying no pressure. Wide internal structure, unobstructed view, more convenient access. Large capacity: mobile phones, umbrellas, clothing, books, wallets and other daily necessities can be easily installed in the clear backpack. High-quality: The bag is made of high-quality environmentally-friendly thickened PVC, which is sun-proof and waterproof in summer and freeze-proof in winter. Multifunctional: This transparent backpack is suitable for daily carrying, travel, outdoor sports, and can also be used as a school bag. Service assurance: If you have any questions about our backpack, please feel free to contact us. We are always here to help you.