Size-mass relation of passive VIPERS galaxies (grey open + red open points) in the two extreme redshift bins of our analysis (0.5z<0.7 in the lower panel, and 0.9z1.0 in the upper panel). Blue open points are the MPGs analysed in this paper (vertical lines indicate the mass cut). Horizontal lines indicate half of the FWHM at that redshift, while magenta lines are the best fit of the size-mass relation of MPGs. Black diagonal lines are lines of constant Σ (2000 and 1000 M_⊙ pc^-2).