We present the stellar mass profiles of 147 isolated quiescent galaxies in very low-density environments ( i.e. , void regions ) in the local Universe ( 0.01 < z < 0.06 ) from the Sloan Digital Sky Survey .
These galaxies have stellar masses between 9.8 \lesssim \log ( { M _ { \ast } } / { M _ { \odot } } ) \lesssim 11.2 and they represent \sim 15 \% of the whole galaxy population in the void regions down to M _ { r } = -19 .
We do not find any isolated quiescent galaxies with \log ( { M _ { \ast } } / { M _ { \odot } } ) \gtrsim 11.2 .
We compare the stellar mass profiles of these isolated quiescent galaxies with the profiles of stellar mass-matched samples of the quiescent galaxies in group and cluster environments .
We find that , at fixed mass , quiescent galaxies in voids have similar central ( 1 kpc ) mass densities ( \Sigma _ { 1 } ) and central velocity dispersions ( \sigma _ { 1 } ) compared to their counterparts in groups and clusters .
We show that quiescent galaxies in voids have at most 10 - 25 \% smaller half-mass ( and half-light ) sizes compared to quiescent galaxies in groups and clusters .
We conclude that for the intermediate stellar mass range of 10 ^ { 10 } -10 ^ { 11 } { M _ { \odot } } in the local Universe , environmental mechanisms have no significant additional effect on the mass profiles of the quiescent galaxies .