Men's & Boys' Suits of Other Textile Materials, Not Knitted or Crocheted

If the jacket and trousers are put up together for retail sale as a suit, the set classifies under 620319 (specifically the cotton suit lines such as 6203191010 for the jacket component and 6203191020 for trousers/breeches imported as suit parts). If the pieces are imported separately and not presented as a coordinated retail set, each garment classifies under its own heading — the jacket under 6203 blazers/jackets and the trousers under 6203 trousers. Documentation showing retail packaging as a suit is important to support the combined classification.

Lines such as 6203199010 through 6203199030 apply to suits made of 'other textile materials' where the secondary fiber content is high enough to trigger cotton, wool, or MMF textile category controls. Even though the chief weight fiber is neither cotton nor MMF, the secondary fiber composition determines which textile category number governs, affecting any applicable quota monitoring or visa requirements. The NESOI line 6203199080 covers suits where no such secondary-fiber restraint applies.