Which sun hat are you wearing?

In the past, sun hat enthusiasts have used cotton, linen, nylon or even plastic to protect their faces.

But now, new research suggests these types of hats could be made from a non-toxic, biodegradable material that could make them much safer to wear.

The research was published in the Journal of Materials Science.

The paper was carried out by a team of researchers at the University of Copenhagen.

The team, led by researcher Johan Hovvold, used two different types of materials to make the sun hat.

One material was a polymer that had the ability to absorb light and act as a light absorber.

The other material was made of a nanotechnology that had a special ability to break down proteins.

The researchers found that these materials could be easily and efficiently made from biodegradeable materials, which could reduce environmental risks and increase the life span of these hats.

HovVold says that the new material has a similar effect on the skin as a UV-blocking film does.

“These materials are much more durable and absorb UV light very well.

So they have a very low impact on the human skin,” he says.

“So they’re much more suitable for outdoor use, and that’s the use of the sun hats.”

The team used an infrared microscope to examine the materials and then analysed their properties.

They found that the materials had the following properties: “A high electrical conductivity of up to 1,000 ohms/cm2.

The materials are a very good absorber of UV light.

The material is highly water- and oil-repellent, and it’s very lightweight.”

They also found that when heated, the materials acted as a “thermal insulator”.

The researchers said that this is very important for outdoor wear.

“The thermal insulation allows the material to resist heat from sunlight for a long time and keeps it in the material for extended periods,” Hovvel said.

“This material can be used in very long-lasting sun hats.

And this is the first time that this material has been shown to be able to retain this kind of heat for a very long time.

The thermal insulation also allows the sun-exposed material to maintain its shape.”

The researchers also found a “high surface tension” for the material, which is useful for the hat’s design.

HOVVOLD says that he hopes the new materials will be a new approach to sun hats, but admits that the initial experiments weren’t very successful.

“We tested these materials on animals, and we saw that they’re not very good.

But this is not the first experiment that we have done and we’re still working on it,” he said.

The results have been published in an academic journal.