4 oz./yd², 100% polyester interlock; UPF 40+ protection ; Welt collar with three-button placket; Double-needle stitched sleeves and bottom hem; Perfect for printing or sublimation; 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;