Abstract: The present invention relates to a fairing for a trailer having a wheel assembly adapted to be movably attached to the trailer. The fairing is positioned to cover a frontal area of the wheel assembly. More specifically, the fairing includes a shell and an anchoring mechanism. The shell is designed to cover the frontal part of the wheel assembly. The anchoring mechanism allows attaching the shell to the wheel assembly so that the shell is adapted to freely follow a movement of the wheel assembly upon repositioning of the wheel assembly relative to the trailer.