Feel your impact in this crazy-soft sustainable muscle tank that has had its total carbon footprint reduced and uses an equivalent of up to 6 recycled plastic water bottles. 4.2-ounce, 50% recycled polyester/25% organic ring spun cotton/25% modal, 30 singles This product's carbon footprint has been measured and reduced through a combination of preferred materials and investing in carbon offset projects though the ClimeCo Certified Product ™ Program 1x1 rib knit neck Back neck taping Relaxed fit Side seams Recycled tear-away label