The 2018 US Open Tennis Under Armour Unisex Hat in Navy Blue Mesh is a stylish and high-quality accessory for tennis fans. Made by the reputable brand Under Armour, this hat is perfect for showing support for the US Open event. The navy blue color adds a touch of sporty sophistication, making it a versatile piece to wear to games or casual outings. Made with breathable mesh material, this hat keeps you cool and comfortable while cheering on your favorite tennis players.