While all operators to date have adopted the standard nine-abreast arrangement initially detailed by the carrier in its catalogue, Air Caraïbes has selected a dense ten-abreast configuration with a seat width of just below 17 inches, enabling it squeeze more returns out of the aircraft. This additional seat in each Economy row will mean the carrier’s A350-900 will seat just short of 400 passengers - 389 passengers in a three-class configuration (18 in Business, 45 in Premium Economy and 326 in Economy).