The price of waistcoats has increased 35% since the beginning of the World Cup, thanks to Gareth Southgate.
Retailer Marks & Spencer, the official supplier of the team's suits, has said sales of the item have rocketed since the English football manager's post-match interviews.
For each of England's three games in Group G, the former Middlesbrough and England Under-21 manager has been formally dressed in a fully buttoned M&S blue waistcoat.
Southgate, 47, also wears a pale blue shirt, with a red, white and blue striped tie.
The waistcoat is available at M&S and is now valued at £65.
Edward Kelleher, menswear buyer for John Lewis, told The Sunday Times: ''We have seen a return to the waistcoat.
Not just as a part of a three-piece suit and not just for weddings.
''The waistcoat is a classic and adds a dapper edge to a suit and sartorial finish to a man's look.
''Over the last year we have seen the sales triple on waistcoats.
''We plan to offer more waistcoats for our customers in our coming assortments.''