All of our solar hats are handmade and assembled in the U.S. We are proud to offer solar powered straw hats that work on 100% green renewable power. There are no battery needed. Our solar hats have a sun protection of UPF50 +. There is a reason our customers rate our hats 5-stars year after year. To feel the benefits of our solar hats simply step outside under the sun and feel the "kool" breeze.