MissFox Canvas Backpack Rucksack Satchel Hiking Bag Bookbag 1Inch=2.54CM 1CM=0.39Inch (our site is 1-2 sizes smaller than US size. please check the size chart.) Material:Canvas Open Method: Hasp and string There might be slightly difference in color, because of the computer monitor settings. With the difference in the measurement method, please allow 1-3 cm in size deviation.