Built for movement in unpredictable conditions, the Senja Alpha90 Hood is a hybrid layer designed to keep pace with shifting effort and changing weather. Whether you’re climbing into cooler air or pushing through fluctuating temperatures, it delivers targeted warmth where you need it and ventilation where you don’t—making it an essential companion for trail running and high-output pursuits.
At its core is a carefully mapped combination of advanced materials. Polartec® Alpha 90 insulation provides lightweight, air-permeable warmth across the front and shoulders, actively releasing excess heat to prevent overheating. Paired with Polartec® Power Grid™ fleece through the body, it enhances moisture wicking, stretch, and overall breathability. A lightweight ripstop nylon face fabric adds wind resistance in exposed areas, creating a balanced system that adapts as your pace and environment change.
Every detail is shaped for motion. The close-fitting hood layers easily under a cap or helmet, while articulated sleeves and thumbhole cuffs ensure a secure, stay-put fit. A slightly extended back hem adds coverage on the move, and a zippered chest pocket keeps essentials within reach. Reflective elements increase visibility in low light, rounding out a piece that’s engineered for performance without compromise.
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