My wife and I re-ordered 100 of these masks in black after going through the first 20. It doesn’t take long to appreciate the comfort and quality of the design. There’s more interior space for a pocket of ventilation, and the top, bottom and both sides easily conform to the shape of our faces. Since 2020 neither of us have had Covid, the flu, nor even a cold. We are seniors who plan to wear masks on many occasions for the long haul, and want the best combination of protection and comfort. After trying many, these are our favorites.