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The Hidden Toxins in Gym Clothes

editor's note

Hi there. I don’t know about you, but I’m looking forward to a long weekend with some fresh air. These picnic-perfect recipes are catching my eye (I’ll keep the food safe, promise). Some gardening — and an attempt to grow the perfect tomatoes — probably won’t hurt my mood, either. I don’t have the greenest thumb, so if they’re dead by June, at least I’ll still have my good knees. What I won’t be giving up? Sitting outside with my morning cup of coffee. I have nothing to prove.

— Sami Roberts / Writer / Denver, CO

well, well, well...

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The Hidden Toxins in Gym Clothes

Of all the places you might expect to find harmful chemicals, your closet might not be one of them. But reports about the prevalence of forever chemicals and health concerns over uniforms and children’s clothing, as well as proposed legislation, are making some think twice — especially when it comes to activewear.

Oh, great.

Not all chemicals found in your favorite gym shirt are toxic — but many are. Some of the main culprits (that researchers know about):

We don't have a more robust list, partly because of the lack of regulations in the US. Some states have passed bills to protect consumers, but there are very few federal laws. Brands don’t have to disclose what’s in their products (except in California) — and sometimes don’t even know what’s in them.

Should I be concerned? 

Probably. Many of the toxins are found in sweat-wicking, water-resistant, anti-wrinkle, anti-odor, and flame-retardant clothing. Particularly activewear. Your skin can absorb many of them, especially if you’re sweating, says Erika Schreder, the science director at Toxic-Free Future. They can also be absorbed by inhaling gasses and dust that come off of clothing, she explains.  

The available research shows these toxins may negatively impact your skin, immune system, fetal development, fertility, and risk of certain cancers. But don’t toss it all just yet — researchers are still trying to understand the health impacts that come from chemicals and what level of exposure is dangerous.

Your move

It’s nearly impossible to completely avoid these chemicals — and that’s not your problem to solve. Schreder says the best solution is government policies that regulate toxins in clothing. Until that happens, you can reduce your exposure by…

  • Avoiding clothes that claim to be stain-resistant, anti-odor, anti-wrinkle, sweat-wicking, and water-resistant. 

  • Choosing natural fibers like organic cotton, merino wool, and hemp, says Schreder. Synthetic materials like polyester, nylon, and spandex are typically treated with harmful chemicals.

  • Searching brands’ websites for certifications like GOTS, OEKO-TEX, and bluesign that verify their clothing is made without many of the known toxic chemicals. 

  • Shopping sustainable brands. Fast fashion often means more harmful chemicals. Sustainable options can get $$$, so it may not be within your budget. 

  • Voting for lawmakers who support holding clothing makers accountable and protecting consumers.

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Babita Spinelli

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Context matters: “The timing of when one shares, to whom, and how one shares needs to be considered.” 

It can be positive when it…“can cultivate deeper connection, vulnerability, and enhance a friendship or relationship.”

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