9902.13.47 - Vests (other than sweater vests) for men, knitted or crocheted, of man-made fibers, with textile or polymer-based electrodes knitted into or attached to the fabric and incorporating two snaps designed to secure a module to transmit heart rate information from the electrodes to a compatible monitor (provided for subheadings 6110.30.30)

This HTS classification, 9902.13.47, specifically addresses a niche category of men's vests designed for athletic or monitoring purposes. The core product is a knitted or crocheted vest made from man-made fibers. What distinguishes these vests are the integrated textile or polymer-based electrodes, which are either knitted into the fabric or securely attached. Furthermore, these vests are equipped with two snaps, serving as a connection point for a module that transmits heart rate information. This specific configuration directs the classification back to the provisions under subheadings 6110.30.30, indicating a temporary or special classification for these technologically enhanced garments.

Given that this is a leaf node within Chapter 99, there are no further subdivisions under this specific code. Its uniqueness lies in the combination of garment construction (knitted/crocheted vest, man-made fibers) and its specialized functional components (electrodes and snap connectors for biometric monitoring). It is crucial to differentiate this item from standard vests or vests that might incorporate electronic components but lack the specific design for transmitting heart rate data as described. The primary classification criteria will revolve around the presence and function of the electrodes and the snap mechanism for module attachment, alongside the material and construction of the vest itself.