1. The visor caps are made of 100% high-quality cotton, durable, sturdy, lightweight, they also can protect your skin from the ultraviolet ray in summer. 2. One size fits most with adjustable closure. Fit with a head circumference of18.9"-19.6". 3. The visors hats for women and men are good outfits, especially during outdoor activities such as climbing, hiking, walking, shopping, climbing, and so on.