The former Lorient defender saw action over the weekend in the Emirates Cup.
"Laurent is tough, he's not so tall but goes for the close marking style," Vermaelen told Arsenal's Official Matchday Programme.
"He's a clever player, quick over the ground, quick with his feet and looks to be the complete defender.
"I think we can work together well, he's right-footed and it's often better to play one left-footed and one right-footed defender together. That's the boss's choice.
"With Johan [Djourou] too we are three quite similar defenders - we all like to mark tightly. Johan is big of course, but myself and Laurent aren't as tall but we all look to play with our feet, and we are all quick.
"We are all quite similar so we should be able to work together well."