Predicted profiles of the observed Lyα line from two super-Eddington galaxies GN-z11 (Bunker et al. 2023) at z = 10.6 and Maisie (Finkelstein et al. 2022; Arrabal Haro et al. 2023b) at z = 11.4. In each panel, different curves from left to right refer to the ISM neutral hydrogen column densities N_HI = 10^{20 + 0.1j} cm⁻², with j = 0, 1, …, 10. The gray lines show the Lyα profile emerging from the galaxy, which also accounts for the outflow velocity. The colored lines represent the observed profile after transmission through the IGM, whose GP damping wing, including the surrounding H II bubble (e^−τ_GP), is shown by the red curve. For each observed curve, we show the values of the line peak velocity shift, v_p, FWHM (both in [km s⁻¹]), and EW in [Å]. For GN-z11 the observed values (Bunker et al. 2023; Scholtz et al. 2023) are (v_p, FWHM, EW) = (555 ± 32 km s⁻¹, 530 ± 65 km s⁻¹, 18 ± 2 Å), which are very well reproduced by the curve with N_HI = 10^20.1 cm⁻². At the same N_HI, we predict that the Lyα EW for Maisie is 7.6 Å.