Brooks Propel Mesh Hat 2.0Your new favorite summer running hat, the Propel Mesh Hat 2. 0 is lightweight and breathable, with UPF protection. So you can keep your head in the game and out of the sun. Features Lightweight and breathable UPF protection Responsibly made Care instructions To keep your Brooks gear looking and performing its best, machine wash separately before wearing, try not to use fabric softeners and tumble dry on low heat.