Racehorse models tailor-made three piece complete with shirt and cap ahead of this year's Cheltenham Festival

Amid the throngs at a day at the races, tweed suits are a common sight – among the two-legged fans at least.

So race-goers at tomorrow’s Cheltenham Festival will be forgiven for stopping in their tracks if they come across race horse Morestead, who has a tweed ensemble all of his own – complete with shirt, tie and customised cap.

The tailor-made Harris Tweed outfit is the world’s first three-piece suit for a horse, and was unveiled by Morestead and champion jockey Sir Tony McCoy ahead of this year’s festival.

It was specially commissioned by bookmaker William Hill and designed by former Alexander McQueen apprentice Emma Sandham-King, who spent four weeks creating the outfit, which required ten times as much fabric as the equivalent human suit.

In all her team of seamstresses used more than 18 metres of tweed shipped in from the Isle of Harris.

Ditching his jockey silks for a tweed suit, Sir Tony, who has had successes at 31 Cheltenham Festivals, said: ‘I’ll be watching from the side-lines for the first time this year and rather than strapping on my jockey silks, I’ll be joining the punters and hopefully tipping up a few winners to bash the bookies.’

Ms Sandham-King said: ‘Creating the world’s first tweed suit for a horse has been one of the biggest challenges that I have faced in my career as a designer.

‘We have used 18 metres of genuine Harris Tweed to create the head-turning fashion garment.

'Some models can be real divas, but veteran racing horse Morestead was calm and a pleasure to work with.

‘Tweed is undergoing a massive revival and this year’s Cheltenham Festival will see the most tweed worn since the 1960s.’

William Hill spokesman Jon Ivan Duke said: ‘Cheltenham Festival is a landmark moment in the racing calendar where punters battle the bookmakers over 28 races.

‘This year our eye is on tweed-wearing Willie Mullins, who came so close to breaking the bookies on the opening Tuesday at last year’s Festival.

'It’s déjà vu this year and if Mullins saddles four winners on the opening day, it could hit bookmakers for £50million’.

This year’s Cheltenham Festival begins tomorrow and lasts until Friday.