Comparison between the effective radius in physical scale of HELM galaxies and non-dusty dwarfs. We show the distributions in the F277W filter for the control sample of non-dusty dwarfs (filled dark blue histogram), for the HELM-1σ sample (dashed green histogram), for the HELM-2σ sample (dash-dotted yellow histogram), and for the HELM-3σ sample (solid orange histogram). All samples are limited to z < 1. Coloured arrows indicate the median of the three samples and are slightly shifted vertically for clarity.