It is not as comfy as other frameless masks including the Cressi F1 mask. We believe that Hollis have tried out to boost rigidity of your mask for sturdiness and safety by strengthening the skirt materials meaning it may pinch and dig In case the mask isn't a suitable match https://siliconmaskingsizem351727.blazingblog.com/28465741/the-fact-about-silicone-face-mask-unmask-that-no-one-is-suggesting