I use fishing gear from Bass Pro ( XPS Extreme Performance Series). It has SPF 30 or 50 and when you sweat, the gear dries very fast. It is also stain resistance, so grass stains are non existent.
Also another plus is that it helps you to maintain a neat appearance. You don't have to look dirty all the time.
Complete Property Grounds Maintenance
Text "LawnGuy" to 90210 on your mobile device.