How do the Adidas 24/25 shirts fit from last season fit? Are they true to size or do they run big / small?

Just buying one (the regular shirts, not the player spec) for my dad for Christmas - just curious how they fit so i know which size to get him, whether it's true to size or big / small fitting. He normally wears large.

It's the only season i didn't get one for me so not sure myself!

Cheers