Some businessmen use charts to emphasize their point. President John Barrow of St. Louis Park-based retailer Coolibar presented a bikini.
"Does anyone think this is a sun-protective garment you would recommend to patients?" Barrow asked a group of dermatology nurses at a conference.
If Barrow had his way, more Americans would avoid swimwear that exposes a lot of skin to the sun's harsh rays. His business, Coolibar, founded in 2002, sells clothing and hats embedded with chemicals offering an ultraviolet protection factor of 50 or higher.
Coolibar markets to medical professionals who treat people for sun damaged skin and offer patients advice on preventing it.
It all began when Barrow and his wife received repeated requests from a friend to buy sun-protective clothing on their trips to Australia. Barrow's wife suggested there could be a U.S. market for the products.
More Americans are getting skin cancer. Melanoma has increased an average of 3.2 percent a year between 1998 and 2007, according to the National Cancer Institute.
"For most of history, in general, people have used clothing to protect themselves from the elements," Barrow said. "It's really only in the late 20th century that people decided that it was a good thing to take more of their clothes off and get tans."
Coolibar, named after a eucalyptus tree in Australia, has about 200 different styles that can be bought online and in select stores. The average price of a Coolibar shirt is $60.