The three One Direction members Niall, Liam, and Zayn all use the same shoe size. Which?

Explanation

One Direction are an English-Irish pop boy band based in London. The party of five includes Niall Horan, Zayn Malik, Liam Payne, Harry Styles and Louis Tomlinson. They signed with Simon Cowell's record label Syco Records after being formed and finishing third in the seventh series of British television singing competition The X Factor in 2010. The group subsequently signed in the United States with Columbia Records.