Transportation company FedEx Express is delivering a dose of patriotism as Singapore celebrates its 42nd birthday.

From Aug 1 to 31, the world's largest express transportation company is flying the national flag on its 160-strong fleet of delivery trucks in Singapore.

The company will also be issuing limited edition National Day postcards to customers as part of the celebrations.

"This year's National Day theme, 'Singapore: City of Possibilities' is one that resonates with FedEx. We focus on changing what's possible and are constantly enhancing our services to meet and anticipate our customers' needs," said Mr Ramesh Kumar Singam, Managing Director for FedEx Express Singapore and Indonesia.