Over-Hat 100% LinenAbout This Over Hat Beautifully simple, versatile, and 100% linen. Stylishly made with a classic look that will last and pass the test of time. Marta suffers from severe eczema and because of her condition she is allergic to the sun and sun blocks. On sunny days, especially in the summer, she used to come up with numerous ways to cover herself, most of the time by adding an extra layer of clothing on top of her hat for shoulder and face protection.