The International Habitation Module, International Habitat or I-HAB is designed as the main habitat module of the Lunar Gateway station, to be built by the European Space Agency (ESA) in collaboration with the Japan Aerospace Exploration Agency, or JAXA. The addition of the I-HAB and the Habitation and Logistics Outpost (HALO) module will provide a combined 125 m3 (4,400 cu ft) of habitable volume to the station.