The 2-way tie mask is the most secure design with 12" ties to enable you to adjust the fit. Simply slip the chin-seat under your chin and wrap the mask around your face. You can also slip one or both of your ears in the side flaps for more protection or just cover the whole ear without using the flaps.
Tie the mask high on the back of your head and you'll be set for hours of comfort and protection in moderate settings with social-distancing as needed.
You can also reverse the position of this mask; just invert it and use the chin seat over your nose!