One piece of hand baggage is allowed on board for Business, Business Lite should not exceed 2 pieces up to 8 kg and for Flex, Plus, Lite and dimensions should not exceed 1 piece up to 8 kg and dimensions of 55 cm x 45 cm x 25 cm. It should be stowed under the seat in front of you or in the overhead bins.
Czech Airlines Checked Baggage
Czech Airlines Excess Baggage