  We demonstrate that the interplay of Zeeman and spin-orbit coupling fields in
a 1D wire leads to an equilibrium spin current that manifests itself in a spin
accumulation at the wire ends with a polarization perpendicular to both fields.
This is a universal property that occurs in the normal and superconducting
state independently of the degree of disorder. We find that the edge spin
polarization transverse to the Zeeman field is strongly enhanced in the
superconducting state when the Zeeman energy is of the order of the
superconducting gap. By calculating the space resolved magnetization response
of the wire we demonstrate that the transverse component of the spin at the
wire edges can be much larger than the one parallel to the field. This result
generalizes the well established theory of the Knight-shift in superconductors
to the case of finite systems.
