PROBLEM TO BE SOLVED: To provide a hat with a muffler having a muffler portion longer than the hat portion. SOLUTION: A hat 1,100 with a muffler according to the present invention has a hat portion 10, 110 covering at least a head 201, and a muffler portion 20, 120 for wrapping around a neck portion 203. It is 100, and the muffler portions 20, 120 form an annular shape. The muffler portions 20 and 120 are provided on the lower side of the hat portions 10 and 110, and are characterized in that the length dimension is longer than the peripheral length of the lower side of the hat portions 10 and 110. [Selection diagram] Fig. 1
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