Yes they do
I am not sure either I just know that they keep the shoe size and fit it for you as well as give you another free water proofing within like 6 months or a year or so.
Im not entirely sure on each individuals circumstances, but they had the ones that I had previously bought on file and I'm not sure if that had to do with the time frame or the fact it was a bigger store, etc etc. So i guess im saying theres still a possibility so just go on down and have a chat if you're abled! (:
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