The shirt, called 'Feck off, Emerald Isle', has an all over herringbone pattern with contrasting 'feck off' pin stripes.
The badge is a remix of the fighting Irish and Ireland football badge with the McGregor middle finger salute. The inside neck is also set off with the middle finger greeting whilst the back neck is adorned with "FORTIUS QUO FIDELIUS" or "STRENGTH THROUGH LOYALTY".
Celtic fans unveiled a TIFO tribute ahead of their Champions League qualifier with Astana a few years ago and McGregor loved it. Celtic fans are sure to love this concept design as well!
Celtic Football Club STAND UP!!! This is what die hard support from your fans looks like! What a sight! What a team! Thank you all! pic.twitter.com/txU38gCogI