Irn-Bru is launching its biggest-ever on-pack promotion, offering 100 consumers an all-inclusive holiday.

The Bru-Jet promotion which is also offering Irn-Bru consumers 10% off the cost of a summer holiday through a tie-up with Barrhead Travel will appear from mid-July on a range of Irn-Bru SKUs ­including two-litre and 500ml PET bottles and ­multipacks of 330ml cans.

In May, parent company AG Barr launched its first national push for Irn-Bru as part of a £15m annual ­investment to encourage sales beyond Scotland.