A revolutionary structure for an extremely compact internal volume, never achieved before. The MICROMASK is characterised by a completely revolutionary, patented structure that makes it possible to insert the mask lenses into the ocular orbit thereby obtaining an extremely compact internal volume. The patented “double joint” buckles (cardan joint buckles) rotate both up-and-down and inwards-and-outwards. They provide maximum adaptability to any head shape. Thanks to the quick counterposed push button activation they are simple and easy to use even when wearing gloves. The excellent field of vision, along with the very compact internal volume, makes the MICROMASK a favourite choice among free divers.