Hi g1981c,
They have 3 types of toppers.
The “natural” are about 14 ILD.
The Active Fusion fast response are about 15 ILD.
The All natural are N1 which could be anywhere from about 14 - 20 ILD
You can see the ILD range of most of the latex International products on their website here
ADMIN NOTE:Removed 404 page link | Archived Footprint: latexfoam.com/latex-material/components
(Active Fusion is PLB’s name for Talalay GL).
The list of topper and component suppliers is in post #4 here. You may need to call a few of them because they don’t all list everything they carry on their website but if nobody else carries exactly what you are looking for then SLAB carries all the Latex International products in every ILD and 1", 2", 3" and 6" thicknesses.
Phoenix