Although it is new, it has been opened for the purpose of taking product photos. Please be aware of this beforehand. ※Price reduction not possible ✅Size ・Height: Approximately 48cm ・Width: Approximately 32cm ・Depth: Approximately 8cm ✅Capacity Normal: Approximately 36L Expanded: Up to approximately 55L ✅Storage Configuration ・Total of 7 pocket structure ・Main compartment (A4 size compatible) ・Laptop storage space (14-inch compatible) ・Front zipper pocket ・Side mesh pockets x 2 (for bottles/umbrellas) The 180° full-open design makes it easy to see the contents, and allows for smooth loading and unloading of luggage. ✅Material/Features ・High-density Oxford fabric ・Waterproof specification (IPX5 equivalent) ・Abrasion-resistant design ・Reflective tape (for nighttime safety) ・3D立体 mesh back & shoulder straps ・Design with excellent breathability and load capacity ・14-inch laptop storage possible ✅Color Black ✅Shipping Ships within 24 hours of purchase. ✅Product Description This is a large-capacity business backpack that can be expanded from 36L to 55L. With its 7 storage pockets and compartment structure, you can organize your laptop, documents, clothing, and small items by purpose. The back and shoulder straps use a 3D立体 mesh structure, making it comfortable to wear for long periods without getting stuffy. Made with high-density Oxford fabric, it also considers waterproofness and durability. With reflective tape, it also enhances safety during nighttime travel and commuting to school. This versatile backpack is easy to use for commuting to work or school, as well as for business trips, travel, and as a disaster preparedness bag.