The 3T Cradle Pads give you the ability to adjust the type of pad you use with your 3T aero bars. The compact pads a bit lighter and provide a little better feel of the road. This is great for some riders while making some a bit uncomfortable. For those who really prefer comfort, well, buy the Comfort pads. A little thicker neoprene takes some of the bite out of the road which may be vital if you're competing in long course events.
CMF = Comfort
COM = Compact