Size:Backpack: 30(L)*17(W)*45cm(H), 11.81(L)*6.69(W)*17.72inch(H), Weight: 0.55kg; Lunch bag: 26(L)*15(W)*10cm(H), 10.24(L)*5.91(W)*3.94inch(H), Weight: 0.15kg; It may exist 1-3cm measurement error, please choose the size according to your actual needs. Material:High density nylon fabric, anti-wear, anti-tear and non-toxic, meeting US Children's Product Safety Specified Certification Standars; Used as school bag, travel rucksack, casual daypack, and school bookbag... Comfy:Adjustable S-shaped padded shoulder straps, breathable back panel, thickened sponge handle and soft nylon decompression handle will go easy on your kid's shoulders, hands and back Utility:This primary school backpack and lunch bag set is roomy, to hold daily needs and go off to explore the colorful world; Main pocket to hold A4 books, A4 folders, laptop up to 15 inch...; Zippered front pockets ideal to put some commonly used items for easy access; Side pockets with adjustable buckle perfect for water bottle or folded umbrella Gift and Guarantee:Ideal Christmas Day, New Years Day, or Birthday gift for your child; We offer lifetime warranty and full service satisfaction for every backpack, so please feel free to contact with us if you have any issues with our products.