The Official Online RBS 6 Nations Store is open. The store has everything you need to get behind your team during the RBS 6 Nations, plus the store is now fully stocked with a much wider range of rugby merchandise.
He made his Leicester debut more than 11 years ago, helping the Tigers land five Premiership titles and two Heineken Cup triumphs. He is closing in on 150 first-team starts.
Leicester forwards coach Richard Cockerill said: "Lewis is a world-class player and he has been playing consistently well for us.
"We are delighted that he has agreed a new contract."