JanSport Big Student School Backpack (White/Black Charming Check) Material: Polyethylene-Vinyl acctate Foam Dimension Approximately: (W)Top 30.3 CM/ Down 32 CM X(H) 48 CM X(D) 13.8 CM =(W)Top 11.92" / Down 12.59"X(H) 18.89"X(D) 5.43" Strap Length Approxmiately: 87.6 CM = 34.48" Outside Pocket: 5 ; Inner Pocket: 5 Whole Length of Deep: 30.1 CM = 11.85" ; Capacity: 2100 cu.in. / 34 L