simple differences, ones made of soft material - red dots, and the other harder - yellow dots..
yellow - better for quick hard fast propelling yourself and also lots of swimming but need to get used to them first or can sometime cause cramping with lots of paddling as need fit legs
red - well softer and more easier to paddle and kinder to the feet sometimes. just a preference really
they are both fast powerful fins. if im shooting water somewhere with strong rips and lots of swimming i normally use my red dots to not get cramps and last longer... and normal bodyboard sessions i use my yellow dots and red as back up. Otherwise they are both great fins!!
