Running Man! Haha's winter hat?

I have been watching Running Man this past few days. My friend recommend it to me. I laughed and laughed watching this series. I started on the first episode to 27. then I skipped around. I really like Haha's winter hat on ep 22. I tried looking for it online to buy it maybe but couldn't find a hat like Haha was wearing. I used search words like "winter hat earflap cap, running man haha's hat, korean cloths hat.."