The Silhouette-S is Chromeworks' stealth-optimized full leg replacement, built around magnetically suspended servo motors that eliminate metal-on-metal contact and reduce operational sound output to below 18 decibels at walking pace. The foot sole uses a layered viscoelastic dampening pad with variable-hardness zones that adjust to surface texture in real time, suppressing footfall vibration transmission to floors and walls. Thermal masking panels embedded in the outer shell dissipate heat laterally across the limb surface rather than radiating upward, reducing infrared signature to ambient-adjacent levels within 90 seconds of activation. The chrome finish is a Chromeworks aesthetic signature — polished enough to reflect surroundings, functioning as passive visual disruption in mixed-light environments.

The Silhouette-S is nominally a civilian product marketed to security professionals and corporate executives who want unobtrusive movement — Chromeworks is careful about who they sell to on paper. In practice, the hardware is well-known in intelligence-adjacent circles, and the waiting list for unlicensed units is longer than the licensed one. The chrome finish has made it a paradox: a stealth limb that is immediately recognizable to anyone who knows what it is, functioning as a status signal within a very specific professional community.