I've spent far too much trying to find a perfect mask that I can wear comfortably for an extended period of time and finally found this one. It's not too thick or thin, fits my face perfectly and very breathable. It keeps its form (doesn't hug your lips when you inhale) and I don't need to keep readjusting it. This next one may not seem like a big deal, but for me it is...I can look down at my phone like a normal person again! So sick of holding my phone up to eye level looking like I'm losing my vision! Lol. Two thumbs up... finally.