Our double poly mesh construction wicks moisture better for superior breathability and comfort. Fabric+Weight: 3.8-ounce, 100% polyester double knit mesh. Features+Benefits: Double-needle arm seams, shoulders and hem, taped neck, flat knit collar, 3-button placket, open hem sleeves, side vents. CARE INSTRUCTIONS: Machine wash cold with like colors. Do not bleach. Tumble dry low. Warm iron if necessary. Do not use fabric softeners.