Ocean Reef Neptune Space G-Diver Full Face MaskOcean Reef Neptune Space G Diver Full Face Mask The GDivers series IDM (Integrated Diving Mask) is the perfect mask for the sport diver. Suitable to start diving (proper training required of course) or for an already passionate diver, the GDivers is the perfect first step into the IDM, Full Face Masks world, without having to compromise in the quality of the product, with endless possibilities of customisation, whenever desired. The patented bellows