BACKPACK: Suitable for 5-19 years old kids,durable 300D polyester;11"L x 17.3"H x 5.1"D (44x28x13cm),1* big compatments,two side mesh pocket. LUNCH BAG: Polyester Lining Material,EVA+PE Cotton, 7.48inch(L)x3.14inch(W)x9.84inch(H), , Insulated lunch box with mini Bottle Holder pocket. PENCIL CASE: 8.6Lx1.7Wx4.3H inch, can be used as pencilcase,cosmetic bag,coins bag,etc. Suitable for school, office, traveling and so on. WATER BOTTLE SLEEVE: 9.5 x 9.5 26 CM,fit 500ml/750ml/1000ml cup,Neoprene Insulated Water Bottle Carrier Shoulder Strap Bottle Cover. CUSTOMIZED:Personalized back pack 4 in 1 Backpack Set for Women Teen Youth,best gift for elementary school kids/primary student/children/unisex teens to school,outdoor,sports,hiking,and any daily use. Kids Backpack School Bag Set with Lunch Bags and Pencil Case,Water Bottle Sleeve, Personalized backpack,Perfect size for elementary school kids / unisex-children / unisex-teens / primary students.Casual Easy style using for school,outdoor sport travel.