The Canadian Shield’s Semi-Reusable Face Mask is made up of three layers of heavy-weight 100% non-woven polypropylene. The outer two layers are 50GSM non-woven polypropylene, and the inner filtration layer is 25GSM non-woven polypropylene.
The head strap on the Semi-Reusable Face Mask is a durable and stretchable elastic cord made of a polyester exterior and rubber inner core.
The nose bridge on the Semi-Reusable Face Mask is made of a thin wire of steel coated in plastic.