Science shows that clothing can release PFAS, phthalates, bisphenols, heavy metals, and microplastics, which migrate into sweat, absorb through skin, and are inhaled via shed fibers. Synthetic fabrics carry higher loads of plastic-derived additives and shed microplastics that act as vectors for these chemicals. Feet sweat significantly throughout the day, which can increase chemical migration from fabric.
This is LOW PRIORITY because socks involve less sensitive tissue than underwear, and most modeled exposures from clothing remain near or below conventional safety thresholds. However, socks are worn daily for extended hours, so choosing natural fibers is still a worthwhile swap.
Laurel recommends socks made from natural fibers such as organic cotton, wool, linen, or hemp. A small amount of spandex (also known as elastane or lycra) is acceptable for stretch.
Laurel avoids socks made primarily from synthetic materials like polyester or nylon, and anything marketed as antimicrobial, moisture-wicking, or odor-resistant due to the likely presence of chemical finishes.
Tip: Start by swapping the socks you wear the longest, like everyday work socks or the pairs your kids wear to school all day.
Socks
Science showsclothing can release PFAS, phthalates, bisphenols, heavy metals, and microplastics, which migrate into sweat, absorb through skin, and are inhaled via shed fibers. Synthetic fabrics carry higher loads of plastic-derived additives and shed microplastics that act as vectors for these chemicals. Feet sweat significantly throughout the day, which can increase chemical migration from fabric.
Laurel recommends socks made from natural fibers such as organic cotton, wool, linen, or hemp. A small amount of spandex (also known as elastane or lycra) is acceptable for stretch.
Laurel avoids socks made primarily from synthetic materials like polyester or nylon, and anything marketed as antimicrobial, moisture-wicking, or odor-resistant due to the likely presence of chemical finishes.
Tip: Start by swapping the socks you wear the longest, like everyday work socks or the pairs your kids wear to school all day.