Backpack:Mainly made with high-grade durable polyester cloth, classical and refining design.lightweight backpack with smooth double zipper,elegant and fashionable.Thicken breathable strap design,comfortable to carry.Access to the A4 Books,most for your daily necessities can be loated.Casual Easy style using for school,outoor sport travel.Lunch Bag:A specially made insulated lunch bag designed to keep food warm,This lunch bag can be as a tote bag or a messenger lunchbag.Perfect way for children going to school can find great use in this versatile lunch bag.Use it for food,holding a bento box,snacks,Excellent gift for school kids and busy worker. Purchasing notes:The actual colour of the backpack maybe different from the picture shown due to the different screen of display or reflecting light when shooting.1-2cm error of measuring is a reasonable range due to different measurment methods.If you have problems,please contact me.