Cech enjoyed 11 seasons at Stamford Bridge alongside the Blues skipper before joining Premier League rivals Arsenal in 2015.
Terry had a dig at the Czech keeper’s dodgy gear when answering questions about his team-mates with Chelsea legend Frank Lampard on Soccer AM.
Asked who needed a wardrobe makeover, he replied: “Sorry, Petr Cech.”
Lampard added: “It’s a goalkeeper thing.”
The former Chelsea midfielder then said to Terry: “We had Ed De Goey back in the day, remember him?”
Cech, 34, has been forced to wear a protective hat in games after suffering a serious head injury against Reading in 2006.
The budding fashionista sells signed replicas through his online store and he made an hilarious video advertising them in October.
He jokingly describes the hat as “the best accessory every fan should have – especially during cold autumn and winter days.”