(Stepless Expandable Business Bag) This mens business backpack combines a large capacity and a free size adjustment, allowing you to achieve a beautiful silhouette that matches the shape of a Japanese man. 3 adjustable straps for a perfect fit Unlike backpacks that are too large to overseas standards, it enhances the appearance of the Japanese people. 2-way specifications with attention to material, durability and practicality. The intuitive layout makes it easy to organize the contents of your bag. This bag can cover all occasions such as commuting to work or school, business trips, and traveling. It goes well with rough outfits, and you can wear it with a casual style and give it a beautiful impression. The simple design is timeless and can be used by customers of a wide range of generations.