This Is A Great BackpackHigh Quality Polyester, Durable, Long Time.The Surface Material Is Waterproof Fabric, It'S Water Resistant, Soft And Silky Fabric, Easy To Wiped Off; The Inner Material Is Tough And Not Easy To Tear.External Dimensions:12”X 10”X 4”Inch The Large-Capacity Schoolbag Design Can Accommodate Large Pockets Can Store Your Snacks, Clothes And Toys, As Well As A4 Books. 2 Convenient And Secure Side Pockets For Easy Storage Of Thermos Or Pipette Cups And Other Small Items. There Is A Fixed Buckle At The Shoulder Strap, Which Can Be Buckled To Prevent The Shoulder Strap From Slipping. Leisure Backpack, Daily Used, Short Travel Etc. Great Backpack For Work, Sports, Traveling, Excursions, Shopping, Camping Or Other Outdoor Events.We Used High-Density Pu To Reduce The Burden Of Weight, Protect The Back And Shoulder. Reinforced With Adjustable Shoulder Straps Adjustable Shoulder Strap Is Very Comfortable. It Is Recommended To Wash By Hand Or Wet Cloth, Please Do Hand-Washing At Ordinary Temperatures When You Want To Clean It. Do Not Wash With Hot Water And Bleach, Then Hang Up To Dry.Multi-Function: Fashion Printed Backpack Is An Excellent Backpack For Daily Life. Anime Or Cartoon Patterns Are Very Suitable Also Suitable Adults. Light, Portable And Large-Capacity Design Suitable For Daily Outings, Short Trips,Work, Weekend Vacation, Travel, Hiking, Camping, Hunting, Trekking, Cycling And Other Occasions Or Outdoor Activities. First, This Backpack Is A Very Practical Gift For People Who Travel And Work, Or Give To Friends And Family On Holidays Or Birthdays. This Backpack Is The Perfect Gifts For Your Friends And Relatives. The Casual, Simple And Stylish Appearance Will Bring You A Wonderful Experience.