  We elaborate on s-confinement phases in three-dimensional $\mathcal{N}=2$
supersymmetric gauge theory, especially focusing on the $SU(N)$ and $USp(2N)$
gauge theories with anti-symmetric tensors and (anti-)fundamental matters. This
will elucidate a quantum structure of the Coulomb moduli space of vacua. We
stress the importance of so-called dressed Coulomb branch operators for
describing these s-confinement phases. The 3d s-confinement phases are highly
richer than the 4d ones since there is no chiral anomaly constraint on the
matter contents.
