you can replace the zipper. take it to any tarpaulin manufacturer,or to an automotive upholsterer
To fix a zipper on a backpack, you can try lubricating the zipper with soap, wax, or a specialized zipper lubricant. If that doesn't work, you may need to replace the zipper slider or the entire zipper. You can find replacement parts at a craft or sewing store, or take it to a professional for repair.
If the zipper is separated from the top fabric you can sew it back on, but if the zipper puller is separated you can order a new one as a zipper repair kit and put a new one on there, the stopper for the bottom is included in the kit so it wont come off again. The process of getting that new puller on there can be a bit frustrating so be patient. There is a guide at the bottom of each zipper track, the easiest way to get the new one on is to remove that guide ( what you put the two sides into to start zipping it up ). then start in the fabric and run the new puller up the top side ( not window side ) of the zipper, then replace the guide. ( cripms on ) then it should work as normal.
door car zipper key/lock window
To fix a stuck or broken backpack zipper, try applying a lubricant like soap or wax to the zipper teeth. Gently wiggle the zipper back and forth to loosen it. If the zipper is still stuck, carefully use pliers to pull the slider along the teeth. If the zipper is broken, you may need to replace it with a new zipper or take it to a professional for repair.
Generally, if the insertion pin or box pin (the other half) of the zipper is missing, you should replace the zipper. However, I have found that if an old (or new) zipper that has an insertion pin that will fit the box and slider of the zipper being repaired, carefully remove the pin, align it on the tape portion at zipper bottom, crimp it tightly with pliers, add a drop of super-glue and let dry for 15-20 minutes. You now have a repaired zipper. This works on metal insertion pins only. Plastic zippers cannot be repaired this way.
If you call the Fendi boutique there are authorized repair shops that do have Fendi parts.
The zipper is a wedge... your welcome everyone who needed it(:
Zipper pulls can be purchased from either locally or online. A good local source would be a fabric or hobby store and online you can find them at large retailers such as Amazon.
Get a replacement right/color and length and have someone sew it in for you
Most times when this happens the teeth of the zipper are worn out and you just need to replace the zipper
Google "leather covered buckle".
To fix a frayed zipper, you can try using a pair of pliers to gently squeeze the zipper teeth back into place. If that doesn't work, you can also try applying a small amount of clear nail polish to the frayed area to help hold the threads together. If the zipper is still not working properly, you may need to replace it with a new one.