6.3 oz./yd², 89/11 recycled polyester/spandex; Heather colors are 45/44/11 recycled polyester/polyester/spandex; Moisture-management properties; Set-in sleeves with rolled forward shoulder seam; Side vents; Tagless label; This product meets the following Sustainable Style subcategory:; Sustainable Materials: Contains 89% recycled polyester; ;