4-Way stretch UV flexnProvides excellent protection against UV RaysnFlatstitched throughout entire shirtn**** This product has wide neck and long sleeves ****nTilos is committed to the environment as much as we are committed to our customer satisfaction. Starting in 2012, all new Tilos rash guards will be made from a blend of recycled polyester and spandex with graphic design printed using organic water ink. This creates an environmentally-friendly rash guard that feels good to the touch and looks great.