It is not as snug as other frameless masks including the Cressi F1 mask. We imagine Hollis have attempted to boost rigidity of your mask for durability and safety by strengthening the skirt content which means it could possibly pinch and dig if the mask is just not a proper https://soviet-mm1-gas-mask78677.blog-eye.com/28449032/p1-p2-p3-masker-options