Trendy Apparel Shop Women's 4" Brim Ribbon Band Boater Wide Brim Straw Sun Hat. 100% Paper Straw. Ladies paper straw wide brim boater sun hat for all summer outdoor events. A ribbon grosgrain hat band is accented around the crown. Flat brim measures around 4 inches wide. Fitted with an inner elastic adjustable tie. One size fits most women, fitting up to 57 CM.