You close this school bag with a zipper. This bag is made from polyester and it is targeted towards children.
From John Lewis & Partners
Stokke JetKids Crew Travel Backpack, Blue Sky
Lesters Nurseryworld
JetKids by Stokke® Crew Backpack Blue Sky
Luksusbaby.com
JetKids™ by Stokke® Crew Backpack Blue Sky