Hand made following World Health Organisation’s recommended method
.The strap is stretchy, but not elastic. Pass over head and adjust to suit with the toggle/bead. Very comfortable to wear. No pressure on the ears.
Three layers of fabric. Outside is Polyester, (to repel droplets in the air) polypropylene (non woven filter) & cotton on inside, (to absorb moisture from expelled breath)
Easily washed, dried and re-used.