Forget spray-on jeans or smart shirts – because let's face it, when flying long haul, the chances of being upgraded are slim to none while the opportunity to be overwhelmingly comfortable is very much a reality. Make sure that economy seat feels first class all the way with our how to video below – it's all about sweats and layers, son. And the best part is, this outfit is fly enough to take you from Arrivals straight to the nearest watering hole, without having to do that uncomfortable changing-in-the-toilets thing. Bon voyage!