My most extreme sun exposure was a week of sea kayaking in the Sea of Cortez. I’m mostly Celtic, we were living in Seattle that winter, and then were in the tropical sun all day long with sea water washing off the sunscreen. Â A broad-brimmed hat and a long-sleeve shirt (actually, just a old men’s cotton dress shirt) worked fine for everything but the back of my hands.
In China, many woman wear thin, white cotton gloves to avoid tanning their hands. Â That’s worked okay for me, but less so in the salt water.
What about an extension, rather like the bill of a baseball cap, that buttons onto the cuff of one’s long-sleeve shirt? Â One button(s) is already there on a standard LS shirt. Â Just add another button on the inside of the cuff. Â Then, when you want the sun protection, button that extension onto the shirt.
The extension could be made to be a little bit stiff – doubled fabric stitched together with multiple seams (like the shirt’s cuff), or with little stiffeners in it, like the collars of men’s dress shirts have, or with some material inside of it like a baseball cap bill has. Â Then your hands would be free to grasp a paddle, granola bar or trekking pole.
If you don’t need to grasp anything, get a shirt with French cuffs, but don’t fold the extra back before using cufflinks (although I’d convert it to buttons). Â Just leave the extra cuff extended to protect the back of the your hand (and palm) from the sun.
