The organic latex bears the GOLS stamp. GOLS stands for Global Organic Latex Standard and it certifies that the latex is organic. Getting certified is a lengthy and expensive process and that’s why it costs a little more than the natural. Our natural latex is 100% pure rubber, just like our organic, but costs a little less because it is not certified. This is an important question to ask when shopping for a latex mattress. Many manufactureres will offer “natural” when in fact their latex is blended with other materials.