4 oz./yd², 100% polyester interlock Moisture-management properties Perfect for printing or sublimation Double-needle stitching on neck, sleeves and bottom hem 40+ UPF protection Narrower rib collar Transitioning to tear away label This product meets the following Sustainable Style subcategories - Socially Conscious Manufacturing - This product was made by a mill that has partnered with or is accredited by the Fair Labor Association