Lululemon Unisex Bases Covered 5-Panel Hat This classic five-panel cap shields your eyes from the sun and is so lightweight, you'll forget you're even wearing it. cotton-blend twill This cotton-blend twill fabric will develop wear lines over time giving it a unique look. features Designed for: Office Travel Commute Adjustable closure: Back closure adjusts for a customized fit Shine-bright : Reflective detail helps keep you on the radar in low light Size M/L