Redshift distributions of the five KiDS-1000 tomographic bins. The shaded areas show to limits of each tomographic bin, while the solid lines show the n(z) of the source galaxies in each tomographic bin as a function of both redshift, z, and comoving distance, χ (the latter is derived assuming a Planck 2018 cosmology; Planck Collaboration VI 2020). The black dashed lines show the limits of the spherical matter shells in our forward simulations.