1. Baseball Hat Size: Brim:3.3 inch; High:4.3inch; Closure Circumference: 21.8-23.4 Inches Elastic adjustable buckle:Elastic adjustable buckle, ensure maximum comfort and a secure fit at all times. 2. Breathable Quick Dry MaterialsThis big size baseball hat features mesh on its side and back panels to maximize airflow and ventilation. exercise hatdries fast, Super lightweight and helps keep your head cool and dry. 3. MOISTURE WICKING DESIGN-- The trucker hat is washable and resists unwanted odors for lasting freshness. In this running hat mens intense workouts will be a breeze. The material not only wicks moisture away from your skin, but also promotes excellent airflow, allowing your skin to breathe. 4. Must-Have Accessories: Whether you're looking for a fashionable sports hat for your outdoor adventures, workout routines or simply for adding a finishing touch to your casual outfits, this baseball cap has got you covered. Functionality and unmatched style, they are this season must-have.