Hand Luggage - Iberia

What the official page says

You can carry baggage up to 10 kg (one or two items of up to 14 kg in Business Class, depending on the flight time) with maximum dimensions of 56 x 40 x 25 cm. Additionally, you are permitted one personal carry-on luggage item (such as a backpack or handbag) measuring up to 30 x 40 x 15 cm. You must place it under the seat in front of you.