This Hollis Mask Strap replaces your original silicone mask strap. It is designed to make your mask sit more comfortably and prevent any hair damage and is commonly used by tech divers. Your mask will be easier to adjust, to take off and put back on, both at the surface and underwater.
It will not interfere with any adjustments of your mask strap. You can use this neoprene mask tamer with any dive mask. It has the Hollis Logo and Motto printed on it.