It's not as comfy as other frameless masks like the Cressi F1 mask. We think Hollis have experimented with to improve rigidity in the mask for toughness and safety by strengthening the skirt materials which suggests it could possibly pinch and dig if the mask is not really a appropriate https://masksilicone61594.popup-blog.com/28059538/examine-this-report-on-monkey-silicone-mask