As advertised, I received my order within three days. I tried a mask on right away and was impressed by how much of my face it covered, reaching to well below my chin. Today I gave my mask a real workout, walking up a number of hills. With other masks I've used, that immediately causes my glasses to fog up, and I'm constantly taking them off to deal with the condensation. With the Soomlab mask, I had no such problem! Nor did I have the problem of feeling as though I were sucking in the mask when...