Versatile R1 fleece provides excellent stretch, warmth, wicking & breathability in a variety of temperatures Fleece has high/low grid on inside for enhanced compressibility, airflow, & quick dry-times Microfiber face speeds moisture-wicking & allows for easy layering Off-the-shoulder seam construction reduces bulk while wearing a backpack Two zippered handwarmer pockets 6.8-oz Polartec® Power Dry® 93% polyester (41% recycled)/7% spandex.