Material: Nylon Fabric + Polyester Mesh, Size: One Size Adjustable from 22.6 to 23.8 inches (7 1/8-7 1/2) / (57-60 cm), Bill Size: About 3.15 inches deep / 7.48 inches wide. Net Weight: Approx 120g (Very Light), Feel: Soft and Comfortable, Breathable.Quick-drying fabric: Quick-drying fabrics are used to keep the ears of the neck and face from sunlight. The whole set is surrounded by a neck gaiter, easy to remove, sunscreen and breathable. In addition to a neck flap and a breathable face, it keeps you out of the sun. Neck Face Quick Dry Baseball CapBreathable, Light: Our summer sun hat is only 120g, very light, this weight is very comfortable to wear on your head. The large mesh design, along with the breathable fabrics we use, makes this hat easy to wear. Breathable material for all day wear in warmer months. Fabric: Polyester mesh is ideal for all kinds of outdoor activities, even if the hat is damp with sweat or light rain.Cool Net Mesh: The back of the hat has an adjustment buckle, and the adjustable chin strap design ensures the hat stays in place even in windy weather. The mesh netting keeps you cool and also allows it to be used even on light rainy days.