I bicycle to work during the warmer months (I'm a wimp when it comes to cold weather) and I'm getting ready to start again this year.
I tend to burn easily, and even when I don't burn, I've noticed that cycling seems to give me an uneven tan (with tanned arms but pale legs). So I'm trying to protect my upper body from the sun. I bought this top which supposedly has an SPF:
It just arrived, and when I opened the package I happened to be standing near a window. I could clearly see light shining through the top as I held it up. I couldn't imagine how this could possibly protect me from the sun, so I looked at the website for the product manufacturer, Canari. Their listing for this item did not mention SPF.
So I emailed Team Estrogen, where I ordered it from, and this is what they wrote:
"Team Estrogen actually paid to have these jerseys tested at Suncare Research Laboratories for its UV protection factor. The UPF rating was determined to be over 30. If you need the actual proof, I can find out if we can send you the results via a pdf file."
I still don't get how this could protect me from UV rays. I thought SPF tops had a tight knit to keep sunlight out. As mentioned on the Team Estrogen site, it has a waffle knit, but it's clearly not a thick tight knit throughout.