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slang.fyi

thirty wears test

/ˈθɜːrti wɛrz tɛst/

Common

A pre-purchase check: will you genuinely wear this item at least 30 times?

30 is not a magic number. The point is the forced honesty of the question. Most people know instantly whether they'll actually wear something that many times. The test works best when you answer before you rationalize.

Real-world examples4 examples
#ExampleWhat it meansSource
01almost bought that going-out top but applied the thirty wears test and put it back.The pre-purchase question stopped what would have been an impulse buy.tiktok, 2023
02I own things that failed the thirty wears test and things that passed. the difference is obvious.The speaker can clearly see which purchases were worth it and which weren't.instagram, 2023
03the thirty wears test is just asking yourself if you actually like it or just like the idea of wearing itExplaining what the test really measures beyond a simple number.x, 2024
04this coat passed the thirty wears test before I even left the store. that's how I knew.The speaker felt immediate certainty the coat would be worn often.tiktok, 2024

Use it when

  • Deciding whether to buy something by asking if you'll wear it 30 times.
  • Recommending someone use the test before an impulse buy.
  • Reflecting on whether a past purchase passed or failed the test.

Do not use it when

  • You're buying something for a single specific occasion where 30 wears is impossible.

Variations and related forms

#30wears

The hashtag form used on social media for the same concept.

Thirty wears test vs cost per wear

thirty wears test

The thirty wears test is a binary question asked before buying: will I wear this 30 times?

VS

cost-per-wear

Cost per wear is a calculation: price divided by expected number of wears.

Origin and context

Popularized by activist Orsola de Castro, co-founder of Fashion Revolution, around 2015 as part of the slow fashion and sustainability movement. The hashtag #30wears spread on social media and became a widely cited pre-purchase framework.

First seen
2015
Confidence
high

Cite this page

Use this stable URL to reference the entry.

https://slang.fyi/thirty-wears-test
Updated: 2026-08-28License: CC BY 4.0

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