What is Supima? Only the best cotton grown in America. With extra long fibers that feel smoother, take dye better and last longer than lesser cottons. It's rare, too — less than 3% of American cotton is fine enough to wear the Supima name. So you know it makes an exceptional tee.Supima isconscientiously sourced, American-grown cotton that's farmed to minimize environmental impact. The fibers are 50% longer than standard cotton, so yarns are stronger, softer, less prone to fraying or pilling, and hold color longer. American-grown;Supima cotton is;farmed to minimize environmental impact. Soft, smooth, 100% Supima cotton Classic crewneck style Relaxed: generously cut through the body Falls to mid hip Machine wash. Imported NOTE: Looking for items dimensions on our updated fit? Find them in the size chart above.