It's still a black kit, but instead of one red stripe around the collar and shoulders, there are now three orange stripes - making it look remarkably similar to Chelsea's third strip from the 2010-11 season.
But despite the similarities, the initial feedback from United fans on Twitter has been largely positive, with only a few dissenting voices.
Same style as home and away kits
It follows the same style as the leaked home and away kit photos - a main central colour, the Adidas and Chevrolet logos, and the three stripes along the shoulders - and looks fairly smart.
But Manchester United are not exactly synonymous with the colour orange and, subsequently, some of the club's more traditional supporters might be reluctant to part with the hard-earned cash on next season's third strip.
Adidas under pressure to get it right
This is the first season that Adidas, taking over from Nike, have manufactured Manchester United's home, away and third kits - and they're under pressure to get it right.
United, as the most popular club in world football, sell millions of replica jerseys across the globe each year.
But with the team set to qualify for the Champions League following a one-season absence and a host of top-name stars at Old Trafford, Adidas can expect a healthy return on their investment.
United on course to secure top-four finish
The Red Devils currently sit third in the Premier League table, 11 points behind league-leaders Chelsea, with five matches left to play.
Louis van Gaal's side are on course to secure a top-four finish but can ill-afford to become complacent during these final weeks of the season.
This Sunday they face a potentially tricky fixture against Everton, but winnable matches against West Brom and Crystal Palace.
Then, on May 17, United go head-to-head with Arsenal at Old Trafford but taking on Hull City on the final day of the campaign.
What do you think of Manchester United's new third kit? Have your say in the comments below!
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