The prAna Dora sun hat is a natural paper hat that's soft, flexible, and sturdy, making it travel friendly. An extra-wide brim and a upf rating for sun protection will shield you from harmful rays. Classic stripe extra-wide brim sun hat that protects you from the suns harmful rays and keeps you cool. Easily folds and packs for traveling. 100% Paper. Made of high quality, natural paper fibers that are soft, flexible and sturdy. UPF 50+. 5 (12.7cm) brim. One size fits most. Material: Paper.