They generally fall into three categories.
A. Raw Material Descriptors
1. Terms such as “extra-long staple cotton,” “long-staple cotton,” “short-staple cotton,” “fine-fiber cotton,” and “coarse-fiber cotton” refer to the physical characteristics of the cotton fiber—its length and fineness. Note: these are the most important descriptors, as they directly determine the quality of the socks.
2. Terms such as “Sea Island cotton,” “Upland cotton,” “Egyptian cotton,” and “American cotton” refer to where the cotton originated and where it is grown. The two are distinct but closely related—after all, a superior variety still needs a favorable natural environment to thrive.
3. Terms such as “organic cotton” and “non-organic cotton” refer to the relationship between cultivation practices and environmental sustainability. These have little bearing on the cotton’s inherent quality—after all, socks aren’t something you eat... though environmentally conscious consumers may wish to pay closer attention.
B. Processing Descriptors
1. Terms such as “combed cotton” and “carded cotton” refer to the pre-spinning process. Before spinning, raw cotton fibers are essentially tangled and disordered. Better combing at this stage produces yarn of noticeably higher quality.
2. Terms such as “mercerized cotton” and “non-mercerized cotton” refer to a post-processing finishing treatment that enhances the smoothness and durability of cotton yarn.
3. Terms such as “low-count cotton,” “mid-count cotton,” and “high-count cotton” refer to the fineness of the finished yarn. This primarily affects the thickness of the final product and does not necessarily correlate with quality.
C. Cotton Content Descriptors
Terms such as “all-cotton” and “pure cotton”... these are used rather loosely and are more marketing language than anything else—don’t take them too literally.
What you really want to look at is the proportion of cotton relative to the total weight of the sock, as well as the absolute weight of the cotton itself.
Conclusion:
So, what makes a truly premium cotton sock? It must excel in all three dimensions: the quality of the cotton raw material, the cotton spinning and finishing processes, and the cotton content—both in proportion and in absolute terms.
L.Martin, for example.