"A folding brim collapses so it can be stashed in a waistband when the sun hides behind clouds." — Runner's World Are you an active, on-the-go kind of person with minimalist tendencies? The ultra-lightweight Aero Visor should go with you out the door. It tags along effortlessly because its extra wide folding Clamshell Brim™ packs down to almost nothing. The open crown offers maximum ventilation. And even though it's only 1.6 ounces, it still wicks, shades, and holds your sunglasses for you. Features & Specs 3 1/4" foldable clamshell brim for easy packing UPF 50+ certified sun rating Rapid dry fabric / moisture wicking integrated sweatband Rear low profile hook & loop system for custom sizing 100% Polyester Designed in USA / Imported Weight: 1.6 ounces/45.4 grams