KINGSLONG Vacuum Compression Backpack, 50L, Business Backpack for Men and Women, Expandable Function, Perfect for Commuting, School, Business Trips,

[Innovative Vacuum Compression Backpack with Electric Pump] The backpack is equipped with a vacuum compression bag. Simply open the exhaust valve and use the electric pump to compress the bag in 10 seconds, rapidly reducing its volume by 60%, making it ideal for storing bulky clothing during travel or business trips. ⚠️Notes: 1. To ensure the airtightness of the vacuum compression bag, an additional TPU rubber layer has been added to the zipper, making it difficult to open and close the first time. However, with repeated use, it will gradually become smoother. 2. An electric pump is not included. Please prepare six AA batteries in advance. [Expandable & Compressible Functions & Excellent Storage Capacity] This business backpack measures: (Before expansion: 25L - Daily Commuter) 50*34*15cm → (After expansion: 30L - Short Business Trip) 50*34*20cm → (After vacuum compression: 50L - 1-5 Night Trip) 50*34*23cm. The smart capacity change from 30L to 50L makes it suitable for any occasion, from daily commuting to school or work, to outdoor activities, overseas business trips, and business trips. [Attention to Detail, Waterproof Fabric, and Ergonomics] Made with high-quality nylon waterproof fabric and polyester fabric, each joint is reinforced with stitching. This backpack undergoes rigorous quality inspections for worry-free use. The breathable and cushioned mesh material absorbs sweat, preventing uncomfortable stuffiness and shoulder slippage. The ergonomic design features thick, durable sponge shoulder straps for excellent cushioning and reduced shoulder strain and discomfort. [Simple, Stylish Design & Versatile Backpack] Perfect for everyday use, such as commuting to school or work, as well as travel, business trips, sports, hiking, mountain climbing, picnics, and outdoor activities. It also makes a heartwarming gift for fathers, boyfriends, friends, and colleagues on New Year's Day, Christmas, anniversaries, job hunting, school entrance ceremonies, and graduations. Its simple design and pastel colors make it suitable for all ages and genders. [After-sales service] Please rest assured that your purchased backpack has undergone rigorous quality inspections. This product also comes with a 6-month manufacturer's warranty from the date of purchase. If there is a problem with the product, please feel free to contact us.