NIKE New Tram Training Max Air Large Backpack Black/Black/White polyester Imported Material:100%Polyester Dimension:(W)top 28cm /down 33cmX(H)48cmX(D)21cm=(W)top 11" / down 12.9"X(H)18.8"X(D)8.2" Strap length: approx 95 cm Outside pocket:2, Inside pocket:5(3 for pens, 1 for phone) Capacity:34 Liters. Big enough to hold most 15" laptops