Do Synthetic Workout Clothes Affect Your Hormones?
Microplastics have turned up in human blood and placenta samples. Here's what the research actually shows, and what it doesn't.
Read the piece →
Why Gym Clothes Smell Even Straight Out of the Wash
A Ghent University study put polyester and cotton head to head after the same workout. The polyester lost, badly.
Read the piece →
How to Spot Greenwashing in Activewear
New EU rules crack down on vague claims from September 2026. A practical checklist for evaluating any brand yourself.
Read the piece →
Recycled Polyester vs Organic Cotton: Which Is Actually Better?
A December 2025 study found recycled polyester sheds more microplastic than virgin polyester. An honest look at both fabrics.
Read the piece →
The Real Reason Your Activewear Irritates Your Skin
It's rarely the fabric itself. Dermatology research points to dyes, finishes, and elastic as the more common culprits.
Read the piece →
Is Cotton Actually Good for Working Out?
Cotton gets a bad reputation in gym culture. Some of it is deserved. Here's what it actually does when you sweat.
Read the piece →
What Sweat Does to Synthetic Fabric Against Your Skin
Sweat can pull chemicals out of synthetic fabric and trap heat against your skin. Two separate mechanisms, both worth knowing.
Read the piece →
Is Recycled Nylon Actually Better for the Planet?
ECONYL and other regenerated nylons use a genuinely different process than recycled polyester. Here's what it fixes, and what it doesn't.
Read the piece →
What to Know About Plastic Exposure Before Pregnancy
Research increasingly points to the months before conception, not just pregnancy itself, as a window that matters.
Read the piece →