  The lightest electroweak baryon as a topological object is investigated by
using a general effective Lagrangian of composite electroweak symmetry breaking
and the spin-independent electroweak baryon-nucleon scattering cross section is
calculated. We explicitly show the masses of the electroweak baryons and the
cross section as functions of the Peskin-Takeuchi $S$ parameter and the ratio
of the masses of axial-vector and vector composite bosons. We find that it is
acceptable to regard the electroweak baryon as a dark matter candidate and the
even number of technicolor is favored.
