"Nathan® Run Cool Stash Hat: The Nathan® Run Cool Stash Hat is a unisex running hat designed for warm-weather training and low-light conditions where sun protection and breathability matter equally. Lightweight wicking material keeps the hat comfortable during hot runs, while side gusset mesh panels allow airflow across the sides of your head so heat doesn't build up during sustained effort. The defining feature is the hidden stash pocket at the crown - it holds an ice cube on hot days to help manage heat, or a clip-on strobe light when running in low-light conditions, giving you practical options in one compact spot.The soft mesh wicking sweatband channels sweat and water away from your eyes, so the hat stays functional even when effort climbs. A reflective adjustable back strap closure provides a secure, customizable fit and adds visibility during early morning or evening runs. One size fits most, making it a practical grab-and-go option for runners who train across varying conditions. The combination of mesh ventilation, moisture management, and the dual-purpose stash pocket gives this running hat a practical edge for anyone training in heat or shifting light conditions.Why Our Fit Experts Love It""I grabbed the Run Cool Stash Hat for a summer morning run and tossed an ice cube in the stash pocket before heading out - it made a noticeable difference during the warmer miles, and the sweatband kept things clear the whole way through."" - Sean, Road Runner Sports Fit Expert, Chula Vista, CAWho It's Best ForThe Nathan® Run Cool Stash Hat is best for unisex runners and athletes who train in hot weather, bright sun, or low-light conditions and want a lightweight, breathable hat with practical features. It suits road runners, trail runners, and anyone logging regular outdoor miles who needs reliable sweat management and the option to carry a cooling or visibility aid. VIP Family members can take the Run Cool Stash Hat for a 90-Day test drive with our Perfect Fit Guarantee."