Adjustable straps are made by sewing 1/8” cording or ribbon at each corner, overlapping, and single knotting. This allows for sliding adjustment for custom fit & comfort. The contoured top edge allows for little to no fogging on eyeglasses when straps are properly adjusted.
Reversible full cloth masks may be made to accommodate a filter pocket.
licensed for non-commercial use © 2020 Y. Sharon Peng