We use sized fuzzi bunz, both fairly old ones (old style) I bought used, almost new ones I used from failed newbies (my favorite kind,...haha), and real new ones.
My old ones (made in the USA) are still pretty much fine, some elastic failure over time. When the elastic fails, it just loses pull over time. But a BUNCH of my new ones (made in China) have totally shot elastic. Like failure over night.
What is the cause? Different materials/country of origin, overall decline in quality, washing? We did have a period of time when we used white vinegar but it was fairly short and it seems like it should have affected them all. Something I am missing? I bought them prior to use and the warranty is past.







