The nostalgia around World Cups, European Championships, Irish League triumphs or just those special football players are driving the retro shirt market in Northern Ireland.
Players come and go but it is those shirts they wore at your club that always stick in the memory.
On an Irish league level take Linfield’s Lotto kits from the 90s, Glentoran’s vast array of red, black and green designs from the 80s, or the Glenavon and Portadown shirts from the mid-90s.
Fans adore them.
Of course, you have the all-time international classics such as the Le Coq Sportif jersey a Maradona-inspired Argentina wore to lift the 1986 World Cup, Denmark’s 1986 Hummel design and Brazil’s blue number when Ronaldinho scored that goal against England in 2002.
But what makes us fork out - in some cases - hundreds of pounds for that elusive shirt Zidane wore when he floored Marco Materazzi in his final ever game at the World Cup final in 2006?
Owner of NI Classic Shirt Co at Belfast’s Smithfield Market, Ryan Gilmore (33), felt people’s memories of games or tournaments is the biggest inspiration.
“There’s the nostalgia for the tournaments amongst the collectors,” explained the Bangor FC fan. “They are the ones that really take it seriously.
“They want to get all the shirts from Italia 90 then they want to move on to USA 94, France 98 and so on.”
Irish League nostalgia has ramped up in recent years with many clubs re-releasing versions of special old kits.
Ryan said shirts from any Irish League club are incredibly hard to keep hold of as they fly off the racks.
Glentoran’s new 2021/22 shirt has been based on a classic from the 80s and Ryan believes many clubs worldwide are using that narrative due to fan demand.
“I think it was based on the 87 Glentoran kit with the red and black strip across the chest,” he explained. “I’ve had a couple of those in but they're like gold.
“If you get one of them you’ll have a queue of people. There is the odd shirt like that in the Irish League.
“There were the old KitKat ones for Cliftonville, they fly out immediately. The Lotto ones for Linfield as well.”
When asked what the Holy Grail of retro kits is worldwide, there was only one answer for Ryan - Holland’s 1988 Adidas classic.
That orange and white mesh will forever be remembered for Marco van Basten’s beauty of a volley against the Soviet Union in the final of Euro 1988.
“I’ve been lucky enough to have two or three of them over the years but they are super hard to get,” stated Ryan.
“I didn't plan to sell mine but I got lucky and found one from a collector in Asia. There is a massive retro market out there.
“There’s a girl from Thailand that has one of the Argentina shirts when they played Linfield in 1990 at Windsor Park.
“I got one of the Dutch shirts from them because they had five or six. You question if it’s real or not because they have so many but they actually were.
“I was inundated for weeks and weeks with offers until it was just too good to say no.”