Are synthetic fabrics safe to wear every day?

The safety of synthetic fabrics is a growing area of research, and the emerging picture suggests that daily exposure to polyester, nylon, and acrylic may carry more risk than previously understood. Synthetic textiles expose wearers to three main categories of concern: chemical additives used in manufacturing (dyes, finishes, plasticizers), microplastic shedding from fiber degradation, and the creation of conditions on the skin that promote bacterial and fungal overgrowth due to poor breathability.

While a single synthetic garment worn occasionally is unlikely to cause immediate harm, the concern is cumulative daily exposure. Most people wear synthetic fabrics from morning to night—in their workout clothes, office attire, loungewear, underwear, and bedding. This constant contact means the skin is continuously exposed to low levels of chemicals and microplastics, and the body never gets a break from the heat-trapping, moisture-blocking properties of plastic textiles.

Reducing synthetic fabric exposure does not require an overnight wardrobe overhaul. Starting with the garments closest to your skin—underwear, sleepwear, activewear, and bedding—makes the biggest difference. ONDU curates brands across these exact categories so you can swap out the most impactful items first. Brands like Promeed and Boody offer affordable everyday basics in natural fibers, making the transition practical and accessible.