What is Seat Sure?

To provide you with a more comfortable journey and to give you confidence that the train you're travelling on will not be overcrowded, Seat Sure means that most seats will require a reservation.

To ensure passengers who have a Flexible ticket or pass can still use that benefit and walk-up to board a train, there will be a number of unreserved seats in Coach C for Standard and a number of seats in Coach E or M in First Class, on all of our trains.

This means that if you don't have a seat reservation you'll still be able to travel in the unreserved part of the train. 

Seat Sure