Product name:Rain cover Product size about :20-80L Product color: As shown in the figure Product material:Waterproof cloth product features: 1. Multiple size options: The backpack waterproof cover provides a variety of different size options, from 20L to 80L, to meet the needs of different backpack sizes, ensuring that your backpack is fully covered and effectively protecting the items inside from water and rain. 2. Advanced waterproof fabric coating: Made of advanced waterproof fabric coating, it has excellent waterproof performance, effectively resists rain, snow and moisture, keeping the items in your backpack dry and safe. 3. Suitable for hiking and mountaineering: This backpack waterproof cover is designed for outdoor activities such as hiking and mountaineering, providing comprehensive protection for your backpack, allowing you to enjoy a comfortable outdoor experience in bad weather. 4. Sturdy and lightweight: After careful design and material selection, the backpack waterproof cover is sturdy and Sturdy, while being lightweight and portable, and will not add too much extra burden. It is an ideal companion for your outdoor activities. 5. Simple and convenient use method: The backpack waterproof cover adopts a simple design, which is easy to put on and take off, and the tightness can be adjusted to ensure that the cover fits the backpack tightly, effectively preventing water penetration, so that your bag is always dry and safe. Precautions: 1. As we all know , the different computers display colors differently, the color of the actual item may vary slightly from the following images. 2. If you feel difficult to choose the size, you can contact us at any time. We will give you some suggestions, but for your reference only. Shipment includes: 1 pc Rain cover