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)
This also has the added benefit that when not in use, the mask can be simply slipped down and kept around the neck ready for when it is required. (great for those who have their mask off and on all day)
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 or Poly blend - Hydrophobic so as not to absorb moisture droplets in the air
Middle is polypropylene (non woven filter)
Cotton on the inside, (to absorb moisture from expelled breath)