See also:

Shoulder support
Also supports the back in the shoulder area: ▷ Results in a relaxed seating position. ▷ Reduces strain on the shoulder muscles. ...

2012 BMW 535 Review by Joe Wiesenfelder
I don't walk away from every new model with a single overriding impression, but sometimes a car grabs me by the collar and shakes me. While that wasn't exactly the case with the redesigned 2011 BM ...

Activation/deactivation
Press the button. ...