From Pattern Union:
PDF Instructions and pattern with video links for sewing tutorials showing how to machine or hand sew a face mask from scuba or neoprene.
This inclusive mask has no elastic and is designed to be more comfortable by relieving pressure over the ears with a single strap. This should be helpful for those wearing hearing aids or ear-rings, and the snug fit works with glasses. The mask is in three sizes: child, regular adult and large adult.