JanSport Big Student School Backpack (Grey Tar Perry Plaid) Material: Polyethylene-Vinyl acctate Foam Dimension Approximately: (W)Top 28.8 CM/ Down 32 CM X(H) 47.8 CM X(D) 14 CM =(W)Top 11.33" / Down 12.59"X(H) 18.81"X(D) 5.51" Strap Length Approxmiately: 87.9 CM = 34.6" Outside Pocket: 5 ; Inner Pocket: 5 Whole Length of Deep: 30 CM = 11.81" ; Capacity: 2100 cu.in. / 34 L