Polyester underwear impacts male and female fertility
Best alternatives to polyester underwear
Organic cotton (BEST overall)
Bamboo (super soft + moisture-wicking)
Modal / TENCEL (plant-based, ultra soft)
Merino wool (underrated but amazing)
What to avoid (or limit)
100% polyester
Nylon-heavy blends (especially tight styles)
Anything non-breathable + tight (this combo matters most)