"Product Details This product is a multi scenario portable backpack designed specifically for carts, making it an ideal choice for protecting carts during travel. It has three carrying modes: double shoulder, hand-held, and single shoulder. The back also has a dedicated strap that can be quickly and stably attached to the luggage handle, making it easy to adapt to various travel scenarios such as airports, stations, and outdoors, freeing up hands and making it more worry free. ​ In terms of practicality, it can be folded and stored in the storage basket under the trolley when idle, without taking up additional space; The front is thoughtfully designed with an independent pocket, allowing for easy access to small items such as phones, keys, and wet wipes without opening the main pocket, making daily use efficient and convenient. The material is made of wear-resistant and durable 600D Oxford cloth, which has good anti splash performance and can withstand sudden light rain or splashes. It can be used all year round; Paired with a smooth zipper, the storage cart is fast and convenient, saving time and space for travel. ​ In addition, the backpack adopts a lightweight design, paired with thick sponge pad shoulder straps and breathable fabric, effectively reducing shoulder pressure, and can still be carried comfortably and dry for a long time. It can also be used as a regular travel backpack in daily life, with diverse and practical functions. ​ Size information Backpack size: 48cm × 48cm × 23cm"