I went to buy a under wear of upper body after my work. Because I wanted to warm when I meet my friend at the station.
The under wear I want was made of 100％ cotton. But that wasn't sold in a store near my house.
The store sold only the under wear made of cotton and the artificial fiber.
I explored a under wear I had bought last year at my house because I remembered I had bought it.
The under wear was for preliminary and made 100％ cotton.
I wondered why the store don't sell it this year.