If you are planning to bring gifts for the Cuban people Sunwing has something called a 'Humanitarian Clause' (or similar wording). Anyway, if you contact Sunwing prior to leaving and give them notice that you are bringing gifts, then they won't charge you for the overweight luggage. I did not see anything like this in my research and imagine how upset I was when the Sunwing rep told me about it at the airport, thanks, but a little too late. Of course Sunwing wouldn't readily advertise this, they got me for $160, just for the extra bag of gifts. It is $20 per kg you are over, and that one bag for us was the only cause for our luggage being overweight. Needless to say, they won't get me again for that and hopefully they won't get you too after reading this.