Like the 2014M and with the addition of a permanent gut strap.

How To Size A Body Belt:  The most critical measurement of a body belt, in terms of comfort, is the dee measurement.  The proper dee size is normally found by measuring from the prominent part of one hip bone around the back to the same point on the other hip bone.  Add 1" (25 mm) for non padded belts and 2" (50 mm) for padded belts so that the dee ring heels are just forward of the hip bones and not on them.  All measuring should be done over clothing to be worn under the belt.  Normal combinations of dee and belt measurements are shown below.