??Material?? — Our Backpack is made of Water Resistant and Durable Canvas.Excellent craft manship, clean stitching and high quality metal accessories.Ensure a secure & long-lasting usage everyday & weekend. ??Dimension??— Backpack size:10.5 x 10.5 x 19.5 . Large capacity and suitable for professional office workers, college students,high school students, boys, girls, teens, adults. ??Applicable occasions??— This backpack is perfect to be a day pack,and Perfect for going to school, work, weekend get-away, biking, camping, gym, travel, etc. ??Characteristics??— Comfortable airflow back design with thick but soft multi panel ventilated padding, gives you maximum back support. Breathable and adjustable shoulder straps relieve the stress of shoulder. With a hidden anti theft pocket on the back protect your valuable items from thieves.Adjustable shoulder strap design,can be freely adjusted according to each person’s different height. ??The best service??— If you have any questions about our products, just contact us without hesitation : Click Ask a question or Send us email,We will answer your questions within 24 hours,and give you a satisfactory solution.