[Printing ] Full-width single-sided printing [Material ] 600D plain Oxford cloth (Polyester) [Product performance] The high-density pu plain cloth is strong and wear-resistant, the whole package design is fashionable and light, the adjustable shoulder strap can be adjusted to your comfortable length, the widened shoulder strap design can relieve the back pressure and protect the shoulder, large capacity design, It can accommodate 15-inch laptops and ipads. The main bag is large enough to hold books, clothes and other everyday items. It can help you to bring convenience to your daily work and study or travel to collect classified items. Casual, simple, stylish shape with your own personalized customization gives you a wonderful experience. [Suitable for people/scenes] Schools, tourist mountaineering, training courses, shopping, zoos, parks, outdoor sports, etc., for both men and women [washing instructions] Recommended hand washing