The Airwave is our lightest weight shirt. It’s so light and easy-wearing, you will barely even know you have it on. Made of quick drying nylon-poly blend with a touch of stretch to keep you from bogging down when you are throwing bocce balls or flipping burgers. Ride the wave.Features Quick drying 52% nylon, 44% polyester, 4% cotton Mechanical stretch for better range of motion UPF 35 sun protection Mesh vented back yoke Button-down collar Sunglass cleaning microfiber at hem Wrinkle resistant Regular fit