Come and see our amazing products. There are ventilation mesh holes on the top of the hat and the front of the neck flap. Can increase air circulation, keep you cool and breathable. Best partner for various outdoor activities.Made of waterproof nylon fabric and polyester net mesh, easy to clean, breathable, quick-drying, wear-resistant, lightweight and comfortable wear. Pls confirm with us about the packing info, stock color and exact production time before placing your order.