Fashionable backpack,smart backpack 1.Material: microfiber or 600D 2.Size:45*30*15cm 3.Very comfortable strap Fashionable backpack,smart backpack1.Material: microfiber or 600D2.Size:45*30*15cm3.Very comfortable strap and durable material4.Newest design5.Logo: printing, embroidery, metal logo and Rubber Logo is ok as per your choice6.All material is environmental-friendly, will be per REACH, RPET, ...