Materials,this itabag crossbody bag make from materials all of the zippers work great and open smoothly the stitching is very and full of durability Structure:this pin bag have a main big pocket and a clear pockets comes with itabag insertthe gothics punk clear window is great for enmal pin, brooches,badges,buttons,stickers and small aesthetic items you do not want to lose Multifunction,this uniform itabags comes with a shoulder strap,which adjusted freelyis perfect for cosplay,theme party,traveling,hiking,camping, and comics con, music festivals, concerts,daily use Easy and comfortable for use,can use it as a itabag, itabag crossbody bag,itabag toted bag, itabag shoulder bag,uniform bag,daily use bag or bag the wide and breathable strap will not cramping your shoulders put heavy stuff inside Widely uses this itabag backpack is perfect for traveling,and comics con,theme party,music festivals, concerts, grocery shopping, dog walking