6211.49.50.10 - Coveralls, jumpsuits and similar apparel:

This HTS classification, 6211.49.50.10, specifically covers coveralls, jumpsuits, and similar one-piece garments designed for women or girls, when these articles are constructed from textile materials other than those enumerated in preceding subheadings and contain 70 percent or more by weight of silk or silk waste. These are distinct from other categories such as track suits, ski-suits, swimwear, blouses, or vests, which are classified elsewhere even within the broader "other garments" category.

The defining characteristic of this subheading is the material composition and the garment style. The "similar apparel" designation refers to garments that share the one-piece, full-body coverage characteristic of coveralls and jumpsuits, and importantly, are intended for female wearers. The high silk content is a critical factor for classification here, differentiating these items from other garments made from different textile blends or natural fibers. As a leaf node, this classification does not subdivide further, meaning any garment meeting the criteria of being a women's or girls' one-piece coverall, jumpsuit, or similar apparel, and composed of at least 70% silk by weight, will fall under this specific HTS code.