4.5-ounce 60/40 ring spun cotton/poly90/10 cotton/poly (Light Steel) Softest hand in performance 40+ UPF rating Moisture wicking with dynamic vapor control Tag-free label Double-needle coverseamed neck Contrast neck taping 3/4 lay-flat collar Shoulder-to-shoulder taping Double-needle sleeves and hemDue to the nature of 100% polyester performance fabrics special care must be taken throughout the printing process.