The Lululemon Women's Fast and Free Running Hat Heritage 365 is the perfect accessory for runners who want to stay cool and comfortable during their workouts. Made with a lightweight and breathable fabric, this hat is designed to wick away sweat and keep your head dry. It features a four-way stretch construction that provides a comfortable fit, while the adjustable strap at the back allows you to customize the fit to your liking. The hat also offers UPF 50 sun protection to shield your face and head from harmful UV rays. With its sleek and stylish design, the Lululemon Women's Fast and Free Running Hat Heritage 365 is a must-have for any serious runner.