How to Choose Sustainable Activewear (Without Falling for Greenwashing)

"Sustainable." "Eco-conscious." "Planet-friendly." Activewear tags are covered in language that sounds good and specifies nothing. If you actually want your next pair of leggings or your next sports bra to be a lower-impact choice — not just a better-marketed one — here's what to actually check.

1. Look for a number, not an adjective

"Made with recycled materials" could mean 5% or 95%. A brand that's actually done the work will tell you the fiber content and the recycled share on the product page itself — something like "75% recycled nylon, 25% spandex," not just the word "recycled" floating near a leaf icon. If a product page won't give you a percentage, that's worth noticing.

2. Check what the brand discloses beyond the fabric

Fabric sourcing is one input. Water usage, packaging, and shipping are others, and they're easy to leave out because they're harder to make look good. A brand that publishes real figures — even modest, incremental ones — is telling you more than a brand that only talks in absolutes like "100% sustainable," a claim that isn't really possible to make about a manufactured product.

3. Durability is a sustainability feature, not a separate category

This is the one most "sustainable" marketing skips entirely. A recycled-fabric legging that pills, sags, or loses its stretch after ten wears and gets thrown out isn't a lower-impact purchase — it's a regular purchase with better packaging copy. Flatlock seams, four-way stretch that actually recovers, and a waistband that holds its shape are the boring-sounding details that determine whether a piece gets worn for years or ends up back in the donation bin by spring. Cost-per-wear is one of the most honest sustainability metrics there is, and it has nothing to do with the label.

4. How you wash it matters almost as much as what it's made of

Recycled or virgin, most activewear is still a synthetic fiber, and synthetic fibers shed microplastics in the wash. Cold water, a mesh filter bag, and air drying instead of tumble drying all measurably cut down on what ends up in the water system — and they make the fabric itself last longer, which loops back to point three. We wrote a longer fabric breakdown if you want the deeper version of this.

5. Ask what happens to it at the end of its life

Here's the part brands rarely bring up: a blend like recycled nylon plus spandex — which is most of what makes leggings stretch — is genuinely difficult to recycle again once you're done with it, because the fibers are hard to separate. That's not a reason to avoid blended fabric; stretch performance depends on it. It's a reason to buy pieces you'll actually keep, and to check whether a brand offers any take-back or resale program before assuming the garment just disappears responsibly when you're done.

The short version

Look for a specific recycled percentage, not just the word. Look for a brand willing to publish real numbers instead of absolutes. Weigh durability and cost-per-wear as seriously as the fabric label. Wash cold and skip the dryer. And go in knowing that no piece of manufactured clothing is impact-free — the honest goal is fewer, better, longer-lasting pieces, not a perfect label.

Zola's Sustainability page lays out our own numbers — 60%+ recycled materials, 40%+ reduced water usage, and reduced-plastic packaging — using the same standard we'd want any brand held to.