The Performance Light’s laser cut mesh allows for moisture and heat to escape easily, keeping your head cool and dry. Perfect for your marathon run or next outdoor adventure, its ultra lightweight sweat wicking material is breathable, UV protected and never weighs you down. PLEASE NOTE: Top Knot hat sizes run small. If your measurements fall between two sizes, we suggest you choose the larger size. Product Features: ✔ Comfortable Magnetic Back Opening ✔ Ultra Lightweight, Deluxe Material ✔ Laser-cut mesh design ✔ Perspiration Absorbing Sweatband ✔ Sweat Wicking ✔ UV-Protection ✔ 100% Machine Washable Product Care: ● Machine Wash in Cold (delicate bag recommended) ● Air Dry Only