fivefingers

I was wondering which of these shoes would be best for Freerunning/Parkour and Martial Arts. I was stuck between Bikila, KSO and the Classic.I'm leaning towards Bikila but I'm not too sure.

I was thinking of getting vibram five fingers but since it will be cold in 3 months or so I was wondering if they are warm or if there is a way to make them warmer.BTW Is there a warmest INIJI sock thingy like made of wool or something?