COOLIBAR SUN PROTECTION: Leading Sun Protection Company worldwide, guarantees UPF 50+ apparel blocking 98% of UVA and UVB rays. DERMATOLOGIST ENDORSED: First company honored with the Skin Cancer Foundation Seal of Recommendation and trusted by top dermatologists FEATURES: Approximate circumference: 22 1/2 inch (Medium), 23 inch (Large), 24 inch (X-Large), 25 inch (XX-Large); Brim: 2 5/8 inch; Spot Clean; Imported RECOMMENDED FOR: when you want to pack light and travel in style - technical sun protection to take you from sightseeing to a café lunch NOT RECOMMENDED FOR: swimming, not chlorine and salt water resistant or water repellent A hat that packs and looks this good? Yes, please! Our Holden Packable Travel Fedora with side eyelets on crown for additional airflow is the perfect, protective travel companion.