It won't be helpful in the water, but the Central Coast Surfboards COVID Facemask is a comfortable, cool way to do your part, and still be able to go grocery shopping.
Super-soft and slightly stretchy, with adjustable elastic ear straps, this mask is so stylish and comfortable you might even wear it when no one else is around.
S/M mask will fit most adults. M/L is pretty big; it's appropriate for very large faces and high-volume beards.