From AirEuropa's website
AirEuropa.com > Flying Blue > Platinum Benefits > Extra baggage allowance
Platinum benefits with SkyTeam
Extra baggage allowance
If you are traveling to a destination subject to weight restrictions, we offer an additional allowance of 44 lbs (20 kg) when you fly AIR FRANCE, KLM, Air Europa and Kenya Airways.* This is 44 lbs (20 kg) more than the regular baggage limit authorized for the class in which you are traveling.
http://www.aireuropa.com/us/en/flyingblue/default.html