Hand made right here, following World Health Organization's recommended method
The strap is super soft & stretchy (not elastic) and passes over the head and adjusts to suit using the toggle/bead to gently hold it in place. Very comfortable to wear. No pressure on the ears. (Great for this with hearing aids)
There is a moldable wire across the bridge of the nose to ensure a good fit to the curves of your face (and stops your glasses fogging all the time 👍)
Three layers of fabric.
Outside is Polyester (Hydrophobic to repel droplets in the air)
Middle is polypropylene (non woven filter)
Cotton on the inside, (to absorb moisture from expelled breath)