4.5 oz./yd, 60/30/10 recycled polyester/USA grown ring-spun cotton/rayon. The polyester content is currently transitioning to CiCLO polyester. Modern fit. Clean Canvas Technology for superior printability. 1x1 ribbed, mitered V-neck collar. Self-fabric neck tape for comfort. Side seams. 40+ UPF rating. Black tear away label. This product meets the following Sustainable Style subcategories - Sustainable Materials - Contains 60% recycled polyester Sustainable Manufacturing - This product was made in a facility that is run by at least 50% renewable energy Socially Conscious Manufacturing - This product was made in a facility that utilizes the Higg Index and has implemented Level 2 practices or above, and was made by a mill that has partnered with or is accredited by the Fair Labor Association.