fitting: most people will fit a medium and a large, there is not much size difference, if you are in doubt please order a size up so it will not be tight The Nike Boonie Bucket Hat features a classic bucket-style design with a wide brim to shield your face and neck from the sun. The brim is made with a durable, water-repellent fabric that ensures you stay dry in case of unexpected rain or splashes. This hat is made with a lightweight, breathable fabric that provides superior ventilation, keeping you cool and comfortable even in hot weather. The moisture-wicking technology in the fabric ensures that sweat is quickly absorbed, keeping your head dry and fresh. The Nike Boonie Bucket Hat also features an adjustable chin strap for a secure and comfortable fit. The strap is made with a soft, comfortable fabric that won't irritate your skin, and can be easily adjusted to fit any head size
