Nike Bookbag Backpack, Red Material:Main&gt;100%Polyester,Inside&gt;95%Nylon, 5%Polyester Dimension:(W) 18.9 " X (H) 13" X (D) 8.3" = (W) 48 cm X (H) 33 cm X (D) 21 cm Strap length: approx 102 cm Outside pocket:6 , Inside pocket:2