These reusable and fully adjustable face masks are made from cotton and linen blends with an additional thin but tightly woven lining sewn in between layers. Each mask comes with a thin and comfortable leather strand to wear around your head and an additional set of shorter strands that allow you to wear the mask around your ears (optional). The leather strand allows you to adjust the mask for the perfect fit and avoid the pressure of elastic around your head or ears all day.