...

There are different varieties of cotton, as well as different quality levels. Two of the highest quality cottons are Egyptian and Pima/Supima cotton.Egyptian cottonis grown in Egypt, as the name suggests. Pima cotton is grown in the United States, although you might often see it referred to as “Supima,” as well. This is a portmanteau of “superior pima” and is a registered trademark of the Supima trade association, which promotes Pima cotton. 

...