Wojciech Szczesny believes the team's shape has been the key to Arsenal's defensive improvement this season.
The Gunners have kept six clean sheets in their last seven games and no team in the Premier League have conceded fewer goals this term.
Szczesny is enjoying the defence's current form and says they can get even stronger.
It's a credit to the whole team shape and the work that we've done in pre-seasonWojciech Szczesny
"If you look at our defensive record this season then people might understand that we have improved," said Szczesny. "But I believe that there's still room for improvement, we've conceded 10 goals so far in the Premier League so I hope we can still improve.
"I think the whole team shape and the way we defend from up front [is better], not just the back four.
"I have less saves to make and when I do have saves they're usually from long range so I don't have a lot to do in games.
"It's a credit to the whole team shape and the work that we've done in pre-season."
Arsenal face a tough spell of fixtures before Christmas with away trips to Napoli and Manchester City preceding a home game against Chelsea, but Szczesny isn't looking beyond Sunday's game against high-flying Everton.
"They are big games," said Szczesny. "But the three points against Everton will be just as important as the three points against Hull City - they are worth just as much.
"We'll try not to put too much pressure on ourselves and focus on playing the way we have been.
"You can see it's given us the results so far so there's no reason for us not believe that we can do exactly the same thing against the big favourites or the bigger teams as you call it."