With the Chaskee Zuma Reversible Cap Bombay Stripes, you get sunshade for your head and a small packing miracle in one. When the sun beats down on the earth, your thinking center is protected up to a radiation level of UVP 60+ with the roof cap. The extra large neoprene shield also ensures that you are not dazzled. Once the sun has disappeared, you can fold up your Chaskee Zuma Reversible Cap very small and simply stuff it into your backpack. Practical, isn't it?