Various blog posts and articles suggest that freezing a pair of tights will make them last longer.

From a blog named Eclipsed Moon:

  • Put your tights in the freezer.

    I thought that this was a silly old-wives tale, but it actually does work! Putting your tights in a plastic bag and storing them in the freezer when you aren’t using them helps keep the material firm and less prone to ripping.

From an article on PureWow:

Good thing there’s a super-easy trick for extending the life of your tights.

You freeze them.

Yes, it sounds crazy, but hear us out: The next time you buy a new pair (and before you wear them), run them under water until they’re damp. Then place them in a plastic bag and freeze overnight. Take them out and give them a day to defrost and thaw out.

You only need to do this once — after that, you’re good to go. The chilly temps firm and strengthen the individual fibers of your tights, making them less susceptible to runs later on.

I'm skeptical. My questions are:

  1. Where is the evidence? Are there any controlled studies confirming this phenomenon?
  2. Does the water make any difference?
  3. Is this advice for storage, one-time treatment, or both?
  4. If it is indeed effective as a one-time treatment, why don't they come pre-treated from the factory?
  5. If it works, why does it work?
  • $\begingroup$ Cross-posted here after being closed on Lifehacks, since this seem to be the closest to a Materials Science site. $\endgroup$ – 200_success Oct 9 '15 at 23:40
  • $\begingroup$ Did you actually check it? Chemistry is an experimental science, you know. $\endgroup$ – Ivan Neretin Oct 9 '15 at 23:56

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