  Warp drives are exotic solutions of general relativity that offer novel means
of transportation. In this study, we present a solution for a constant-velocity
subluminal warp drive that satisfies all of the energy conditions. The solution
involves combining a stable matter shell with a shift vector distribution that
closely matches well-known warp drive solutions such as the Alcubierre metric.
We generate the spacetime metric numerically, evaluate the energy conditions,
and confirm that the shift vector distribution cannot be reduced to a
coordinate transformation. This study demonstrates that classic warp drive
spacetimes can be made to satisfy the energy conditions by adding a regular
matter shell with a positive ADM mass.
