6004.10.00 - Containing by weight 5 percent or more of elastomeric yarn but not containing rubber thread

This HTS category, 6004.10.00, specifically classifies knitted or crocheted fabrics that contain a significant proportion, by weight, of elastomeric yarn. The defining characteristic is the presence of 5 percent or more of elastomeric yarn, while explicitly excluding fabrics that contain rubber thread. This category falls under the broader heading for knitted or crocheted fabrics exceeding 30 cm in width, which contain 5 percent or more of elastomeric yarn or rubber thread.

The primary distinction of this subcategory from its sibling, 6004.90, lies in the specific presence of elastomeric yarn and the absence of rubber thread. While 6004.90 covers "Other" fabrics within the parent heading, 6004.10.00 is more granular, isolating fabrics based on their elastomeric yarn content. This ensures precise classification for materials like spandex or elastane blends that are crucial for stretch and recovery properties.

Within this category, further subdivision exists to refine the classification based on the method of knit. The subcategory 6004.10.00.85, labeled as "Other," is not a leaf node and indicates the existence of more specific distinctions, likely related to the construction or specific type of warp knit fabric. These distinctions are important for differentiating various applications and manufacturing techniques within the broader scope of elastomeric yarn-containing knitted fabrics.