The patch for 'Soyuz TMA-15M' is based on the shape and features of an attitude indicator, a fundamental element on an airplane instrument panel. This represents the pilot profession, which is common to all three crewmembers.
The outline of a Soyuz spaceship and its golden solar array panels, representing the horizontal lines of the indicator, are integrated with the instrument's pitch and bank angle scales. The depicted attitude of the spaceship corresponds to a bank angle of 15° (the serial number of this Soyuz TMA) and a pitch angle of 51° (the orbit inclination).
Russian and Latin characters, indicating the names of the crewmembers and the spaceship's name 'Soyuz TMA-15M', are distributed in the external scale ring.
The Soyuz spaceship flying above Earth connects the left side of the patch, which includes the destination – ISS, with the right side – the rising Sun (symbol of cognition and renewal).
A shadow, in the shape of an airplane uniting elements of Mig-29, F-16 and AMX, accompanies the flight of the spaceship and points to the indissoluble link between aviation and spaceflight.
The three more prominent stars, next to the constellations Auriga and Cassiopeia, represent the fulfillment of a spaceflight by the cosmonaut and the two astronauts of this expedition. The overall number of stars corresponds to the last two figures of the launch year (2014) and, including the Sun, of the return year (2015).