Okay, the user wants me to translate "sun-hat" into Thai. Let me check the rules again. The first rule says to translate all content into Thai. The second rule states that if the content is already in Thai, leave it as is. The third rule is to provide only the translation without explanations.
So, "sun-hat" is in English. I need to translate it. The direct translation for "sun-hat" in Thai would be "หมวกกันแดด" which is the common term for a sun hat. I should make sure there's no existing Thai term that's more appropriate. Since the user provided "sun-hat" and it's not in Thai, I should translate it. No need to explain, just output the translation. Let me confirm once more: the user wants only the translation, no extra text. So the answer is "หมวกกันแดด".