The low profile Hollis M3, prescription dive mask, is a twin lens rigid frame mask with extra clear glass lenses with great optical qualities. The lenses have a lower iron content than traditional dive mask lenses, reducing the green tint and improving colours and visibility.
The mask fits many faces but works especially well for small to medium-sized faces.
This mask takes the following lenses:
- planos (standard glass lenses, no correction)
- negative diopters: -1.5 to -8.0