Scaled radial mass profiles extracted assuming hydrostatic equilibrium for the samples considered in this work. Left panel: radius and mass are scaled by and , respectively. Blue and red profiles represent relaxed and disturbed objects, respectively, according to the M parameter. Central panel: same as the left panel, except for the fact that we show the mass profile as a function of the density contrast, Δ. The vertical line Δ = 2500 is the overdensity used in this work to compute the sparsity described in Sect. 6. Right panel: comparison of the scaled mass profiles for the Low-z PXI and High-z samples. The solid line and dotted lines represent the median computed for the Low-z PXI and High-z samples, respectively. The gold and green shaded regions represent the 1σ dispersion of the Low-z PXI and High-z samples, respectively. Disturbed clusters have a shallower mass distribution, and present a larger dispersion than that of the most relaxed objects. On the other hand, the median HE mass profile depends mildly on redshift.