Unused. 【Color】 Black 【Lightweight yet Large Capacity】This women's travel backpack, despite being lighter than a mobile phone, inflates to a 30L capacity. It can hold many belongings, and the internal compartment can also be used as a laptop backpack. 【Inflatable Design】Using the included air pump, you can easily inflate the gym backpack to a 30L capacity in just 1.5 minutes. You can also inflate it yourself, but it takes time. When not in use, pinch the air valve to deflate and fold it up for compact storage. 【Modern and Stylish】This men's quilted backpack has a sophisticated and modern design that matches various casual outfits and can be used by both men and women. It's a fashionable puffer backpack featuring a modern and eye-catching design, allowing you to elevate your style. Perfect for various occasions. 【Water-Resistant and Durable】Made of high-quality PU material, this durable and water-resistant backpack keeps your belongings safe and dry in any weather. The double-zipper makes packing even more convenient. External pockets and internal compartments help you organize your belongings. 【Versatile and Practical】This inflatable backpack is the perfect choice for any outing, such as shopping, the beach, the gym, university, work, and world travel. It's versatile, durable, and combines ultimate style and practicality. Thank you very much (﹡ˆoˆ﹡) ✼••┈┈••✼••┈┈••✼••┈┈••✼••┈┈••✼ No.74