Our ultimate, award-winning mid-layers, the Coefficient fleece collection is ready for the mountains. Built with Polartec® Power Grid® fleece designed for high output activities, the Coefficient breathes while on the move, and wicks moisture when things heat up. The minimal slim-cut profile layers easily and added features like an under-the-helmet hood make the Coefficient hyper-versatile for any mountain adventure.

Technical midlayer insulation ideal for everything from chilly cragging days to big mountain missions.

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A midlayer for anything from ski tours to alpine ascents

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