The Seamax M-22[2][3] is a Brazilian single-engine, amphibious light sport aircraft (LSA) and Fédération Aéronautique Internationale microlight.

The Seamax M-22 is constructed using composite materials and metal components.

It has a two-seat, side-by-side configuration cabin with a bubble canopy which is hydraulically raised for access.

It is powered by a 100 hp (75 kW) Rotax 912ULS pusher configuration engine mounted above the wing to avoid water ingestion.

[4] Versions can be constructed to meet the requirements of both the European microlight and US LSA categories.