Mars is giving away 100,000 Official Special Edition Shirts in an on-pack promotion.
The give away reflects Mars position as the Official Snack Supplier to the England Team and helps to build excitement about the UEFA European Championships.
Theo Walcott is the brand ambassador and he will be joined by Ashley Young, Steven Gerrard and Jack Wilshire in consumer communications.
Customers in Scotland, Wales and Northern Ireland will be able to text to win a pound;25 voucher for Sports Direct.
Mars is adding to its Work Rest Play slogan with Work Rest Play Your Part to encourage fans to get behind the national team.
Bep Dhaliwal, trade communications manager for Mars Chocolate UK, said: “The on-pack promotion engages and rewards fans to ‘Play Their Part for England’.”
The bars will be available from April and a TV advert will air that month.
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