Hi djgoldb,
There is more about 100% natural Talalay vs blended Talalay in post #2 here. In the same ILD … the blend will tend to be more durable and more pressure relieving while the 100% natural is denser and will tend to be more “supportive” and more resilient although with a single layer if the ILD is the same most people probably wouldn’t notice much if any difference in a “blind” side by side comparison.
I would also keep in mind that latex in general is a more durable material than other types of foam so “less durable” is only relative to other types of latex and 100% natural Talalay is still a very durable material.
Phoenix