The Proton AR is a highly versatile insulated piece that performs on its own as a softshell and as a midlayer under a waterproof shell. The warmest jacket in the Proton series, its intelligent design leverages advanced material technologies that provide thermal protection while allowing air to pass freely in and out. This helps prevent overheating, minimizes vapour accumulation, and allows the Proton AR to maintain your comfort across a wide range of temperatures and activity levels.
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