Being a Daily Rider here in Tropical Miami Florida, I see many of our Boating and outdoor stores are now stocking Columbia Brand Outdoor/Fishing Long Sleeved Shirts with the roll up sleeve option. The Material used has SPF factors of around 30. Being a person with very light complexion and a Healthcare worker, I am also concerned with the high rate of Skin Cancer found here in south florida amongst fair skinned people. One clerk at SPorts Authority who stocks many of these Shirts with the built-in SPF informed me many shoppers who are replacing older Columbia brand shirts are doing so with the new built-in SPF Shirts. These shirts are not cheap but reletive to the Alternative, developing a case of skin cancer, is not cheap either. Look at the Columbia brands. LLBean.com also carries their own Brand Shirt with a SPF of 50.
http://www.llbean.com/llb/shop/59181...tn&cat4=502975