JanSport Big Student School Backpack (Electric Purple Perry Plaid) Material: Polyethylene-Vinyl acctate Foam Dimension Approximately: (W)Top 29.5 CM/ Down 32 CM X(H) 44.8 CM X(D) 14.1 CM =(W)Top 11.61" / Down 12.59"X(H) 17.63"X(D) 5.55" Strap Length Approxmiately: 87.1 CM = 34.29" Outside Pocket: 5 ; Inner Pocket: 5 Whole Length of Deep: 29.8 CM = 11.73"; Capacity:2100 cu.in. / 34 L