Arc'teryx Men's Kyanite JacketDESCRIPTION: Exceptionally versatile, the Kyanite Jacket functions as a mid layer or standalone piece, and delivers performance across a range of activities. Combining warmth, mobility and moisture management, Polartec Power Stretch Pro allows airflow for thermal regulation and has an abrasion resistant nylon face for durability. The fabric s four way stretch combines with articulated patterning and gusseted underarms for superior freedom of movement,