ScotClans timely delivery and customer service is excellent. Generally their products are excellent also. I purchased tartan facemasks in size "Large" and, although they comfortably fit the width of my face/head, I wish they were longer top-to bottom. The mask, if properly covering my nose, barely made it to middle of the front of my chin. I wish they had had sufficient length to reach the bottom of my chin, or even a little underneath -- this would make for a more secure positioning and a more comprehensive fit. If the answer is that I should have purchased an extra large (I am an average sized thin man), then the sizing description of the masks should have provided greater detail.