What Accessories Are Popular for Casual Outdoor Styles?

I have noticed that people’s fashion choices often change depending on the season, activities, and personal comfort. For casual outdoor events, many prefer simple accessories that can complete an outfit without looking too formal. I am curious what types of hats or accessories people usually choose for everyday wear, especially during sunny weather. Recently, I have seen more interest in styles like a White bucket hat women often choose for casual summer outfits. What accessories do you think work best for relaxed outdoor looks?