Using previously known low mass members in a small region of Vela OB2 we have designed selection criteria that combine Gaia and 2MASS photometry, to identify low-mass PMS stars over the wider association area. Our method picks out the known clusters of young stars around Gamma Vel and NGC-2547, but also identifies other over-densities that may represent previously unknown clusters. There are clear differences in the spatial distributions of the low-mass and the high-mass OB populations, suggesting either that the structure and dynamics of these populations has evolved separately or that the initial mass function can vary considerably on small scales within a single association. Using DR2 we investigate the spatial and kinematic structure of the low-mass population that shows clear substructure in parallax and proper motion space.