If you can take only one hat, bring the Binx. It's reversible: One side is printed with an eye-dazzling medley of triangles and diamonds, the other is a versatile go-with-everything solid. The mid-sized brim keeps tender nose and ears out of direct sun, and the ultra-light, quick-to-dry polyester fabric gets a UPF rating of 50+. Finally, this little bucket folds up small for low-bulk stowage between outings. Now, get going.