What can dogs in polyester pants teach us about plastics? A 1993 study found that male dogs wearing 100% polyester pants for 24 months experienced: 📉Critically low sperm count, also known as “oligospermia” 🧪Reduced sperm motility 🧬More abnormalities Researchers linked it to synthetic (plastic) fabrics in the pants, which is concerning given most of our clothing today is made of plastic fibers. Since then, more research has explored how plastic exposure may impact reproductive health. The good news? Over 80% of the dogs returned to normal sperm count once the polyester was removed. But it’s a reminder that what we wear, and our daily plastic exposure, matters more than we think.