The dimension of this laptop Bag is 12.5L*9.5W*18.5H in. Made of Water Resistant and Durable Polyester Fabric with metal zippers. Ensure a secure & long-lasting usage everyday & weekend. Serve you well as professional office work bag, slim USB charging bag pack, perfects for business traveling, weekend getaways, shopping & outdoor activities in daily life. Good Gift for college high school big student for boys, girls, teens and adults. A well-knitted luggage strap is quite convenient to fix the backpack on the trolley of your luggage, making your journey and travelling more relaxing. Design of an air-flow back padding system and a secret pocket on the back ensures great comfort and safety in your journey.