Thank you for viewing. This is a tote bag I received at the Osaka-Kansai Expo TECH WORLD (Taiwan Pavilion). The fabric is sturdy. It can be folded up and stored (photos 3 and 4). It has a gusset of about 8.5cm, and A4 clear files can fit in vertically (photo 5). Please understand that this item has been stored at home before purchasing.