Amazon.com: UVCoolix Sun Protection Hat Boonie with 。Stay cool and protected under the sun with this amazing cooling sun hat! Perfect for all your outdoor adventures, it combines style and functionality to keep you comfortable and safe from harmful UV rays. • UVCoolix Instant Cooling System – Cool Without Water: Advanced contact-cooling fabric provides an immediate cool-to-the-touch feel—no water needed! Ideal for beach days, hiking, fishing, and more. • UPF 50+ Wide Brim & Full Neck Coverage: Shields your face, ears, and neck from harsh UV rays, blocking up to 98% of harmful rays—perfect for outdoor activities where shade is limited. • Flexible Rollable Brim – Easy to Pack & Wear: Soft-structured brim can be folded flat or rolled for easy travel, ensuring comfort and portability wherever you go. • Breathable, Ventilated, Water-Resistant & Made for Movement: Mesh crown promotes airflow while the moisture-wicking sweatband keeps you dry during hot and humid conditions. • Designed for Real Heads – From Medium to Oversized: Available in sizes from large to oversized, with an adjustable drawcord for a perfect fit for everyone. Fit Type: Regular | Fit to Size Sentiment: Positive | Size: Large-X-Large