Infant baggage allowances vary depending on whether the Weight Concept or Piece Concept applies.
One extra piece of baggage in addition to your usual baggage allowance, regardless of cabin class. This extra piece must be 23kgkilograms (50lbpounds) or less, with total dimensions (length +plus width +plus height) not exceeding 115cm (45 inches).
Passengers travelling with infants in any class are also permitted one (1) handbag for inflight necessities and infant food (weight must not exceed 5 kg/11lb) and one (1) fully collapsible stroller or carry-cot as a carry-on item, as long as cabin space is available and you are not bringing a child seat. If no space is available in the cabin, the stroller/carry-cot must be transported as checked baggage in the hold.