Material : Canvas

Height : 18cm

Width : 20cm

Thickness : 9cm

Oblique dorsal : 135cm(adjustable)

Capacity : can not put A4 paper

Inner :2 pocket , 1 zipper pocket

Out side : Front : 1 zipper pocket : Rear : 1 zipper pocket

(Manual measurement, error is inevitable,1 -3cm were within the normal range)