Hi Cloud99,
100% natural and organic are two different things. 100% natural latex means that the rubber in the latex comes from from the rubber tree and that there isn’t any synthetic rubber in the material. Organic means that not only is the rubber 100% natural but it also meets the criteria for it to be certified organic as well.
There is more about the different types and blends of latex in post #6 here and there is also more about the different levels of organic certifications in post #2 here.
While both Dunlop and Talalay come in 100% natural versions … there are several Dunlop manufacturers that make certified organic Dunlop but there are no Talalay manufacturers that make certified organic Talalay.
There are no regulations about the use of the term “natural” in the industry so it’s fairly common that a blended material that is partly natural and partly synthetic is called natural yes. For example the blended Talalay that is made by Latex International (now called Talalay Global) is called “natural” and their 100% natural Talalay is called “all natural”. It’s usually a good idea to ask about the specific blend of any latex material you are considering if having natural vs synthetic latex is an important issue for you.
Again there is certainly 100% natural Talalay but there is no 100% natural Talalay that also has an organic certification. I would also keep in mind that 100% natural latex doesn’t mean that the only ingredient in the material is rubber. There is more about 100% natural latex (either Talalay or Dunlop) in post #7 here and post #18 here but all latex (including organic) use other substances in their compounding formula that are required to make foamed latex besides just the latex itself in their formulation.
Phoenix