Tri-Mountain Athlos Lightweight Windproof Vest, 3XL, BLACK/CHARCOAL Polyester Two zippered pockets, elastic binding on armholes, and brushed tricot inside collar for warmth. Draw-cord bottom hem for a custom fit. Windproof Water resistant polyester Birdseye mesh knit underarm panels Vented front Back yoke with mesh panels underneath Increases breathability and provides easy access for embroidery UltraCool moisture wicking technology. Reflective trim along back yoke adds visibility