Howdy folks,

Apologies if this isnt the right place to ask, please let me know what would be if thats the case.

I booke my parents in Business Class in June, IKA-IST, IST-FRA on TK then FRA-YYZ on AC, they're in "I" class fare.
I cant find a straight answer on what the baggage allowance is.
Any help would be appreciated.