In knitted jumpers and striped shirts, the band pose with a group of trainee guide dogs for fashion magazine Wonderland, out this week.
Despite the matching outfits, Louis insists they will never conform to a boy band stereotype.
He says: “In the past, with previous boy bands, I think they felt like they had to meet a stereotype. We’re just ourselves – stupid, immature and quirky.”
Liam says the boys are closer friends than their fans imagine.
“I think there’s a lot of things that the fans don’t know about us,” he says. “I think our relationship doesn’t really play out as much as people think.
“People still ask whether we really get on or not, and we genuinely do. A lot of people don’t believe that, they think it’s some fake thing where we have to get on because of the position we’re in.”
He added: “I think for us, the main thing is that we’ve just kind of been ourselves, that’s what people like. I think a lot of people get into our situation and you hear they’ve changed, but we‘ve just stayed ourselves.”
Check out photos from the photoshoot in our gallery by clicking the thumbnails below and you can also see the cover of the magazine by clicking the thumbnail below! (: