Uppervoid Air Jacket – One Running x Uppervoid Adaptive Warmth. Built for Extremes. Engineered for the elements, the Outer Shell Jacket is a technical outerwear piece born from the collaboration between One Running and Uppervoid. Designed to adapt to your environment, it features a user-controllable air-inflatable insulation layer, giving you the power to adjust warmth on the go. Simply inflate or release air via the discrete interior valve system. This jacket is made for movement—whether you’re warming up in sub-zero conditions or heading out post-session in the dead of winter. It includes a removable hood and a Velcro arm patch system, with two interchangeable One Running patches included. Minus -10° rated to reflect the jacket’s cold-weather capability and our commitment to performance in any condition. Adjustable air-inflation insulation system Lightweight yet protective outer shell Detachable hood for versatile styling Changeable Velcro arm patch (2 patches included) Designed for performance, made for winter Precision meets progression. This is your cold-weather statement piece.