Material: This backpack is made of premium Oxford and great PVC. All of the zippers work great and open smoothly. The stitching is very clean and sturdy. Structure:This pins bag have a main big pocket and have a inside pocket.A outside zipper pocket and a clear pocket.Come with an ita bag insert.The square shaped clear window is great for enmal pins, brooches,badges,buttons,stickers and small aesthetic items you don't want to lose. Multifunction:This JK uniform ita bags come with a shoulder strap,which can be adjusted freely.is perfect for Cosplay,Theme party,Traveling,Hiking,Camping, Anime Expo and Comic Con, Music festivals, Concerts,Daily use. Multifunction:This JK uniform ita bags come with a shoulder strap,which can be adjusted freely.is perfect for Cosplay,Theme party,Traveling,Hiking,Camping, Anime Expo and Comic Con, Music festivals, Concerts,Daily use. Multifunction:This JK uniform ita bags come with a shoulder strap,which can be adjusted freely.is perfect for Cosplay,Theme party,Traveling,Hiking,Camping, Anime Expo and Comic Con, Music festivals, Concerts,Daily use. ✔✔Kind Reminder: The badge in the picture is for reference only. Purchasing will receive：[1* ita bag , 1* pins display]. but no badge.