Review on 🌿 PollutActiv Allergy Protection for All Outdoor Activities: The Ultimate Defense Against Allergens and Pollution by Ryan Schweigert

Neoprene material (same as wetsuit) so more comfortable than other masks with similar design. The clip is also metal rather than plastic, so it didn't irritate my nose while running. Still slides down so you often reconfigure while running which is a bummer. But that's most likely my face, not the design of the mask. I don't have a wide nose and I think that's where the mask fits best.