I can't be the only one who has accumulated a serious collection of zipper hoodies through recent events. Now, a few of these zippers are just failing, falling to bits in the washer and dryer cycle... but I'm not ready to let go I still love them. A tailor will replace them and it will look like a sad Frankenhoodie. I've tried to find snap on ones but the size thing is a mess, like how do I know the size if the bit is gone, who is using teeny zippers? Mine are hoodie size and all the zippers seem to be roughly the same, is there a bag of replacement hoodie zippers that exists? Anyone doing this successfully and have tips on brands? I found some but the reviews are awful.
With the whole environmental movement wouldn't saving clothing from landfills be a thing? Doesn't seem like a thing from where I'm looking, just sayin'
I'd love to help, but I can't figure out from the post exactly what the problem is. Has the zipper itself failed, or just the pull? Full-zip hoodies have separating zippers, so are you also having problems with the metal stops at the bottom?
As Imzadi said, there are different types. Depending on the size of hoodie you are buying, the length of the zipper will vary, but that's easy; you just measure it from top to bottom. She already explained how to change out the pulls, but I'd one detail; the pliers you should use are bent-tip needlenose pliers; that will keep the pressure of the pliers off the teeth of the zipper when you tighten down the pull.
If the pull mechanism itself if still sliding, but the tab is broken off; that's a super-easy fix; you can buy packs of tabs from
Amazon that just snap on. You can buy packs of zipper pulls and also zippers from Amazon, etsy, and eBay as well; I do it all the time because it is MUCH less expensive than fabric stores. If the metal stops are gone from the bottom of the zipper, then you really have to replace the zipper.
Zipper thickness is classed by the type of garment it is used on; the zippers on your hoodies will all be
separating regular jacket-weight zippers (as opposed to heavy-duty, which is used on parka-weight coats.)
All zippers now are made in China except some of the really long metal ones designed to secure slipcovers. The name-brands you will find in fabric stores are either Coats & Clarks or YKK, but they are really all about the same quality within weights, so you won't lose quality buying them in bulk.
If you sew and want to replace zippers yourself, be sure that you have a standard zipper foot available; most zippers sold for garments these days are the invisible type, so newer sewing machines are now often shipped with those, but separating zippers are applied with a standard foot. Putting a separating zipper on a hoodie is about the easiest zipper insertion there is; you will find that carefully picking out the stitching to remove the old zipper will take you about 2X as long as sewing in the new one. Get a good sharp seam ripper for the job; I recommend a lighted one with a magnifier on the end. (If you plan to pay someone to put the zippers in, taking out the old ones yourself first will save you money, but don't tear up the fabric, because if you do a hack job the new zipper will not go in straight.)
PS: Start zipping your hoodies all the way closed and washing them inside out; the zippers will hold up better in the wash that way.
PPS: As a PP said, leather jackets are a whole different animal; you special tools to work on leather.