D2

The D2 is a more fibrous that the other variation which may appeal to some.  With fibers you will tend to chew more making you extract more flavor with every bite.  The flesh is thick and sticky while the taste tends to be richer with a hint of creamy bittersweet.  The D2 also tends to be smaller but longish as shown in the picture below, typically weighing in between 1.2kg – 1.5kg but very hard to open.

Source: durianlicious.blogspot.com