Sunscreen's a pain, but sunburn is worse. UV-protective clothing is expensive and not to everyone's taste. Instead, treat your own cotton, rayon, or silk clothing to make it sun-protective. Some clothing is inherently protective, but you can easily burn right through a new shirt, especially if it gets wet. A couple of boxes of either of two different brands of a wash-in UVA/UVB blocker will invisibly increase the SPF of a whole washer-load of clothing from 5 to 30 (repeat for an SPF of 50). The stuff wears off after a season's worth of launderings, so use a permanent marker to note the year of treatment inside the collars.
posted by Ery on May 19, 2009 - 52 comments

But who are we to know such things? What if what first appeared as a solid yellow flower was in fact a series of radiating stripes? Another prominent one here. This is the world of ultraviolet as photographed by Bjørn Rørslett, the world as it is seen by insects and... bats and other mammals?
posted by vacapinta on Feb 16, 2005 - 19 comments