One Size: Hat circumference: 56-60 cm/ 22-23.62 inch; Hat depth: 11cm / 4.33 inch; Brim: 7.5 cm / 2.95 inch Breathable & Cooling Mesh Design - Light mesh panels for better ventilation and keep you dry and snug. Applying Massive Durable Mesh Vent sets your head free from stuffiness. Light Weight - The cap crown is unstructured. so it can be folded and fit into any bag. Combined with breezy light fabric, this cooling hat can give you a lightweight wearing. And you can take it with you to everywhere and will not occupy too much space, bring you a lot of convenience during use. Perfect for Sports, including Water Activity - The material will not get wet like regular cap. It will not make you feel uncomfortable if it gets wet. Ideal for runners, golfers, tennis players, golf, tennis ball, fishing and any indoor or outdoor activities. Perfect for Sports, including Water Activity - The material will not get wet like regular cap. It will not make you feel uncomfortable if it gets wet. Ideal for runners, golfers, tennis players, golf, tennis ball, fishing and any indoor or outdoor activities. Style: baseball cap Material: Polyester Package included: 1 -2 x Hat. Please choose accordingly. Note: Please allow 1-3cm difference due to manual measurement. Due to light and screen difference, the item's color may be slightly different from the pictures.