Material: Nylon Color: Gray Size (measured by hand, laid flat) Length: Approximately 35-36 cm Width: Approximately 28 cm Thickness: Approximately 12-13 cm Thank you for viewing. I am selling this because I purchased another backpack. I believe it has been used, but I tried to take good care of it. I would appreciate it if those who don't mind minor details would purchase it. Thank you. I will not compress it, but I will flatten it for shipping.