[Mitasu] Convenient To Carry Foldable, Lightweight Backpack, 20L, Blue, Large Capacity, Foldable, Eco-friendly, Travel Bag, Sub-bag, Carry-on

[Compact and easy to carry!] This foldable backpack can be stored compactly when not in use. It's great as a secondary bag when traveling, on business trips, shopping, or outdoors. It folds to the size of your palm, so it can be easily stored in a suitcase or in the gaps between bags. It can be carried like an eco-bag, so it's also great as a spare bag when your luggage increases. [20L Large Capacity! Holds up to 18 PET Bottles] This foldable backpack offers more storage capacity than it looks. The spacious main compartment is large enough to fit up to 18 500ml PET bottles. It's perfect for travel, shopping, going to the gym, outdoor activities, mountain climbing, and hiking. Even though it's a foldable backpack, it offers ample storage capacity for plenty of belongings. [Carry-on compatible! Convenient for travel and business trips] The back of the backpack has a carry-on function. It can be easily attached to the handle of a suitcase, reducing stress when traveling. It also makes moving around airports and train stations smoother. When traveling or on a business trip, use it with a suitcase to reduce your luggage and make your travel more comfortable. [Multifunctional Pockets for Easy Organization] In addition to the main pocket, the bag also features a front pocket and two side pockets. These pockets are perfect for storing items you need quick access to, such as your smartphone, wallet, water bottle, and folding umbrella. The functional design makes it easy to organize your belongings and quickly access what you need. [Lightweight & Water-Repellent! Ideal for Outdoor Activities and Leisure] This ultra-lightweight backpack weighs just 280g, making it comfortable to carry even for long periods of time. The water-repellent fabric makes it safe to use even in sudden rain showers or outdoor activities. This foldable backpack is perfect for a variety of occasions, including school, work, the gym, camping, festivals, travel, and mountain climbing.