If your seriously looking for protection from the sun this is what you want to use. ( BICYCLE CLOTHING ) You can laugh if you want but I can tell you from experience the clothing works great and you can buy the pants too match.
Perfect for hot rides, the Sun Pro II bike jersey from Performance guards against harmful UV rays with its built-in UPF 50+ sun protection. Fast-wicking fabric provides dry comfort no matter how high the mercury rides. Mesh underarms offer strategic ventilation, silicone gripper hem stays put and reflective seams keep you visible long after the sun sets. Three back pockets carry essentials.