For a near barefoot experience that brings the runner close to the ground, the Altra Samson has no cushioning and an extra-firm ride.
The Altra Delilah is a near-barefoot shoe that brings you low and level to the ground. The 0mm drop encourages a more forward footstrike, and the siped rubber outsole provides good grip on hard surfaces. A thin insole gives a touch of underfoot cushioning, and can be removed for a much closer feel for the ground.
The Delilah is a minimum feature, minimum neutral shoe designed for daily training.