Lightweight But Sturdy : The 20inch luggage set is crafted from 100% polycarbonate hardshell. Reinforced corners enhance impact resistance. The zipper has been tested for many times, running smoothly and durable. The 18inch travel backpack features multiple pockets for organized packing, and the matching toiletry bag is roomy for all personal essentials. Smooth Maneuverability : The suitcases with wheels has 360 degree smooth spinner wheels and an adjustable aluminum alloy handle, It can move easily in various scenarios such as airports, train stations, and busy streets, with flexible turning, easily handling complex road conditions and adding convenience and comfort to your journey. Expandable Luggage Set : The carry on suitcase with backpack has practical expandable features, which can increase storage space by 25% when needed, and can easily meet your needs. The matching backpack and toiletry bag are unified with the overall style, highlighting the retro fashion temperament, so that every trip is full of style. Ingenious and Practical Design : The main compartment of this carry on suitcase comes with X-shaped straps to prevent clothes from wrinkling, the dry and wet separation pocket allows for quick access to essentials. The backpack features an ergonomic design with padded shoulder and chest straps, and multiple functional pockets, including a dedicated laptop compartment for 13-15inch laptops. Precisely Suited for Short Trips : It's specifically designed for 2-3 day short trips, The carry on luggage airline approved strictly complies with the size standards of most airlines, allowing direct boarding without the need for checked luggage. Equipped with a TSA-approved lock, airport security staff can open and inspect it without damage using special tools, ensuring the safety of your luggage. Embrace the freedom and convenience of short distance travel with our luggage set. The 20 inch expandable carry on luggage, crafted from premium PC material, strikes the perfect balance between strength and lightness. Its sleek and modern design not only catches the eye but also enables easy navigation through crowded airports, bustling train stations, and narrow hotel corridors. The multi-compartment interior of the luggage is ingeniously designed to maximize space utilization. The X-shaped straps in the main compartment keep your clothes wrinkle - free and neatly packed, while the front quick - access pocket allows you to quickly reach for frequently used items such as passports, boarding passes, or mobile phones without having to open the entire luggage. What's more, the expandable feature of the luggage is a game - changer. With just a simple zip, you can increase the storage capacity by 25%, providing ample space for all your travel essentials, whether it's extra clothes, shoes, or souvenirs. The accompanying 18inch travel backpack is designed with your comfort as the top priority. The ergonomic shoulder straps, padded with high - density foam, effectively reduce shoulder fatigue even during long - term use. The adjustable chest strap helps distribute the weight evenly across your body, making it ideal for those long walks between terminals or exploring a new city on foot. Multiple pockets, including a dedicated laptop compartment that can securely hold most 13 - 15 inch laptops, ensure that you can keep all your items organized and easily accessible. The included toiletry bag is the perfect size to hold all your grooming essentials. Its waterproof material ensures that spills won't damage your other belongings. The internal dividers make it easy to separate your toothbrush, toothpaste, shampoo, and other items, so you can find what you need quickly and efficiently.