When it comes to headwear for hiking, you'll find several options, including a regular cap, hiking hat, or beanie.
The most critical factors to consider when selecting sun protection headwear are the level of protection (preferably UPF 50+), comfort, and breathability. If you're a frequent hiker, durability is also important. Hiking hats typically feature moisture-wicking properties and provide coverage for areas like the face, head, and sometimes the neck, as these areas are most vulnerable to harmful UV rays.
A quality sun hat can also reduce the amount of UV rays that reach your eyes, but it's still advisable to wear sunglasses for extra protection. If the weather appears uncertain, you might want to consider a waterproof hiking hat with insulation to keep you warm in case of a temperature drop.