For the winter days when a vest doesn't help enough, the Equipe RS Winter Mid Layer adds impressive warmth in a packable construction. The aero jersey silhouette disguises the powerfully warm and breathable insulation of the OSMOS Heavy fabric, which has a race fit to ensure smooth layering between a base layer and jacket. The front ramp pocket provides a pouch for the Equipe RS to pack into, when the temperatures rise just enough to shed a layer.