Science showsclothing can release PFAS, phthalates, bisphenols, heavy metals, and microplastics. These toxicants migrate into sweat and absorb through skin. Heat and moisture accelerate this process, which makes athletic wear a particular concern.
Laurel recommends athletic wear made from primarily organic cotton. We allow some spandex because stretchy garments require it.
Laurel avoids synthetic materials (polyester, nylon), semi-synthetic materials (rayon, modal, viscose, lyocell), and anything marketed as moisture-wicking, antimicrobial, or water-repellent.
Tip: Textiles are extremely unregulated -- even if a garment "feels" natural, check the material label carefully.