Business Expandable 20L Large Inch Can Be Expanded YKK High School Business Travel [YESLAU] Backpack, Thin, Lightweight, Function, Rucksack, Men's,

Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction.

【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary.

【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product.

【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer. ✅ Don't worry if your luggage suddenly increases! Expandable to double: Size: 43cm long x 31cm wide x 7cm wide (15cm when expanded); capacity can be doubled by opening the zipper on the side of the backpack. The gusset part can be expanded when necessary, so it can be used not only for everyday business situations, but also for business trips, travel, and even as a disaster prevention bag in the event of a disaster. It also has space for a change of clothes, a towel, and a folding umbrella, so it is recommended as a commuting bag for work or school during the rainy season. A dry/wet separation pocket has also been added, allowing you to store wet items separately. ✅Business backpack is thin and light: only 7cm thin. It's extremely thin so it won't get in the way even on crowded trains or crowded places. Designed to meet modern needs where less baggage is required. Weight: 900g, light so reduces the burden on your shoulders and back. You can easily carry it on your back for a long time. ✅Reduce your burden! Comfortable to carry: The shoulder straps and back are made of thick memory foam and high resilience cushioning. Reduces the burden and provides the best comfort when carrying. The parts that come into contact with the body are made of moisture-wicking and breathable mesh material, providing an excellent fit and breathability, making it suitable for use in all seasons, from hot to cold. ✅Water repellent: The surface of the backpack is made of durable high-density oxford, which repels water and dirt easily, making it easy to clean. Protect your important documents, PC, iPad, etc. from sudden rain. It is also resistant to abrasion and has excellent durability. It can be used safely for a long time. ✅Separate PC/iPad storage space: Can store a 15.6 inch PC and 12.9 inch iPad. Backpacks can get crushed during rush hours, and a thick cushion can protect your computer, tablet, etc. from shock and vibration. Protecting your precious laptop or iPad is important.