Thai Airways have banned young parents and passengers with a girth greater than 142 centimetres from business class seats on their new Boeing Dreamliner 787-9.
The reason for the maximum girth restrictions are the new airbag systems and safety belts that were installed in accordance with the US Federal Aviation Administration.

Restrictions on overweight passengers are not new on airlines, in 2013, Samoa Air became the first airline to charge passengers according to their weight.