A SIMPLE KEY FOR M1 SILICON CHIP UNVEILED

It's not as comfy as other frameless masks including the Cressi F1 mask. We imagine Hollis have experimented with to enhance rigidity of your mask for longevity and safety by strengthening the skirt content which means it could possibly pinch and dig In the event the mask isn't a correct fit on your face.As a pioneering frameless mask, the M1 offer