Arc'teryx Men's Size Chart Exceptionally versatile, the Kyanite Jacket functions as midlayer or standalone and delivers performance across a range of activities. Combining warmth, mobility and moisture management, Polartec(R) Power Stretch(R) 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, and the trim fit hugs the body and layers easily under a shell. Features: - Moisture-wicking - Durable - Air permeable - Stretchy fabric provides freedom of movement - Hem, cuffs and collar bound with Tanica(TM) stretch fabric - Brushed fleece interior - Discontinued Style/Colorway