30Pcs Transparent Backpack Rain Covers, Disposable Lightweight Backpack Cover for Outdoor, Waterproof Dustproof Foldable(Straighten to 90 cm)

The pack size is listed as 1, meaning it straightens to 90 cm when opened. It should fit most standard-sized backpacks.

Yes, the product is designed to be both waterproof and dustproof, protecting your backpack from rain and dirt during outdoor activities.

This product is intended as a disposable cover. It's not recommended for repeated use due to its one-time use design.

The material used in these covers is not specified, but it is designed to be lightweight and transparent.

This product is suitable for hikers, campers, or anyone who needs protection for their backpack during rainy outdoor activities.

The design allows for easy folding and compact storage. Once folded, it should take up very little space, making it convenient to carry along with you.

While it is designed to fit most standard-sized backpacks, the exact fit may vary depending on the specific design and size of your backpack.

The effectiveness of the cover will depend on its condition. It's best to replace it after each use or if signs of wear are noticeable.

Since the cover is disposable, there's no need for cleaning. Simply dispose of it after one use and replace with a new one.

The pack includes 30 transparent backpack rain covers, all designed to be lightweight and foldable for easy storage and transport.