The Ocean Reef Optical Lens Support is designed to be able to be installed in all Ocean Reef Full Face Mask Snorkels or Diving Masks (with the exception of the XS Size)
This frame is engineered with removable, snap in leg. It is a removable and customizable corrective lens option that no other FFSM offers.
Convenient optical correction that transforms in an inexpensive pair of glasses, when you’re done snorkeling and scuba diving, comes with a 2 year warranty
And, It’s environmentally friendly!
The optical lens are sold separately and can be found here