Thank you for viewing! * Brand new, unused * Free shipping * No comments, instant purchase OK 【Please refrain from price negotiations】 Capacity expands just by opening the bottom zipper! This is an expandable, large-capacity Boston bag that provides peace of mind even when your luggage increases. It's perfect for travel, business trips, fitness gyms, club activities/training camps, and outdoor activities. It's also a versatile design that's easy to use as a mother's bag for those raising children. The simple and calm black color can be used by people of all ages and genders. The zipper pocket on the back can be attached to a suitcase handle. Carry-on compatible. You can carry it without stress while moving. It can be folded and stored compactly when not in use. It's also convenient as a sub-bag. 【Color】 Black (black) 【Size】 〈Before expansion〉 Height: Approximately 30cm / Width: Approximately 39cm / Depth: Approximately 22cm 〈After expansion〉 Height: Approximately 19cm / Width: Approximately 37cm / Depth: Approximately 19.5cm 〈When folded〉 Length: Approximately 18cm / Width: Approximately 27cm / Thickness: Approximately 4cm * There may be some errors 【Pocket Specifications】 〈Inside the main room〉 ・Open pocket x 2 ・Zipper pocket x 1 〈Back〉 ・Zipper pocket x 1 Boston bag, large capacity, expansion bag, folding, Boston, travel bag, carry-on bag, gym bag, sports bag, mother's bag, black, unisex, business trip, training camp, club activities, school trip, sub bag B