Multi form switching: Ultra Lightweight Foldable Backpack can flexibly switch between three forms, With easy storage and sufficient capacity. Whether it's daily shopping, short trips, or temporary expansion needs, one package can handle them and adapt to various scenarios. Waterproof and wear-resistant fabric: Dual-Mode Versatility Travel Rucksack selected polyester and waterproof nylon fabric, Effectively protecting the items inside the backpack from moisture. The material is lightweight yet durable, Capable of withstanding friction and pulling during daily use. Convenient storage: The collapsible daypack weighs only 160 grams and has a compact size when folded, making it easy to fit into the gaps of pockets or suitcases. When needed, Waterproof backpack can be unfolded and used to save storage space, Suitable for carrying on trips. Ergonomic design: The rucksack shoulder straps can be flexibly adjusted in length to fit different body shapes and reduce shoulder pressure. The back is made of breathable mesh material, Which has good air circulation and can reduce stuffiness and sweating even when carried for a long time, Keeping it dry and comfortable. Thoughtful and practical: Durable Packable Backpacks suitable for all ages and genders, suitable for scenarios such as school, work, travel, shopping, etc. Giving it to family and friends on occasions such as Christmas, birthdays, and holidays is practical and suitable for daily needs, Conveying thoughtful care.