【3-Way Type for Versatile Use】This bag can be used in 3 ways: handheld, shoulder bag, and carry-on. It's suitable as a gym bag, yoga bag, pool bag, sports bag, travel bag, emergency bag, shopping bag, or crossbody bag. You can use it in various situations, from sports, outdoor activities, and travel to everyday use. It's also recommended for elementary school students' school trips and business trips. 【Scratch-Resistant & Waterproof】The surface material is polyester, using high-density waterproof fabric that is resistant to scratches. This provides excellent abrasion resistance and durability. The zippers are also made with the latest waterproof technology, protecting your belongings inside the bag even in sudden rain. It can be easily wiped clean if it gets dirty. 【Wide Range of Uses】It's not only convenient but also has a wide range of uses. Use it in spring, summer, autumn, and winter for commuting, campus, shopping, outings, dates, parties, summer events, camping, sports, gym, walks, golf, day trips to hot springs, overnight trips, business trips, and domestic and international travel. 【Various Functions】It has one pocket inside for a mobile phone. It's a popular lightweight handbag. It's a large, lightweight bag that can hold B5, A4, and larger B4 horizontal and vertical files, iPhones, iPads, laptops, lunch boxes, and small mini pouches, suitable for high school students, adults, children, women, and men.