A SIMPLE KEY FOR M1 SILICON CHIP UNVEILED

It isn't as at ease as other frameless masks including the Cressi F1 mask. We feel Hollis have tried to enhance rigidity from the mask for longevity and safety by strengthening the skirt product which suggests it may pinch and dig if the mask is just not a correct in shape on your face.The Hollis M1 mask has made a splash in the diving Neighborhood