Lufthansa Group is showing off the new designs for its business- and economy-class seats onboard its Airbus A320 aircraft. The new seats are part of the group’s effort to standardize A320 planes across its brands.

The two classes of Lufthansa’s brands are essentially the same product, but the business class seats recline up to a 26-degree angle, while economy only reclines 20 degrees — still eight degrees more than the current design. In business class, the middle seat is kept empty.

Seats will be installed on all new A320 planes delivered starting in 2019 and onward for use on short- and medium-haul flights. They come in styles specifically made for Lufthansa, Austrian Airlines and Swiss International Air Lines.

The seats were designed by Italian manufacturer Geven and include slim backrests and full-foam seat cushions.

“A lot of customer feedback went into designing the seat and we are pleased to have already received a lot of positive feedback on the implemented features over the course of the project,” said Paul Estoppey, head of product cabin, Lufthansa Group.

Lufthansa Group said it would begin standardizing its A320s across all carriers earlier this year, reducing the time required to convert planes when transferring them between airlines.