💾 Data Updated: Latest version • Last updated: December 09, 2025

9902.13.51 - Socks with uppers comprising neoprene measuring 2.5 mm in thickness and covered on both sides with jersey knitted fabric of nylon; such socks with underfoots of breathable neoprene measuring 2.5 to 3 mm in thickness and covered on both sides with a jersey knitted fabric of nylon; the foregoing each formed anatomically so as to be designed for the wearer's left or right foot (provided for in subheading 6115.96.90)

Details

FieldValue
Unit of QuantityN/A
General Rate of Duty (Column 1 - General)Free
Special Rate of Duty (Column 1 - Special)No change
Column 2 Rate of DutyNo change
Quota QuantityN/A
Additional DutiesN/A
About Duty Rates: Rates are divided into Column 1 and Column 2. Column 1 is subdivided into General (normal trade relations rates for all countries not eligible for special programs) and Special (preferential rates for countries with free trade agreements or preference programs). Column 2 rates apply to products from Cuba, North Korea, Belarus, and Russia. When no special rate exists for a classification, General rates apply.

Overview

This HTS category, 9902.13.51, specifically classifies specialized socks designed for athletic or protective purposes. The core defining characteristics are the materials and construction: a neoprene upper measuring 2.5 mm in thickness, covered on both sides with nylon jersey knit fabric, and an underfoot also made of breathable neoprene (2.5-3 mm thick) similarly covered in nylon jersey knit. Crucially, these socks are anatomically formed for the left or right foot, indicating a high degree of specificity in their design and intended use. This level of detail points towards items offering insulation, impact absorption, or a specific type of grip in demanding environments.

Given its placement within Chapter 99, which covers temporary legislation and modifications, this classification likely represents a temporary measure or a specific trade agreement provision applied to these particular types of socks. Unlike the broader categories of general apparel or basic footwear found in other chapters (e.g., Chapter 61 for knit apparel or Chapter 64 for footwear), 9902.13.51 is highly granular. It distinguishes itself from more general sock classifications by its advanced material composition and anatomical shaping, suggesting a specialized function beyond typical everyday hosiery. The parent context of Section XXII reinforces that this entry is not part of the standard, permanent tariff structure but rather a provision enacted under specific trade or legislative circumstances.

As a leaf node, HTS 9902.13.51 has no further subdivisions. Therefore, the classification process for items falling under this code relies entirely on meticulously matching the imported goods against the detailed description provided. Importers must verify the precise thickness of the neoprene, the type of knit fabric (nylon jersey), the double-sided covering, and the anatomical, left/right foot-specific construction. Failure to meet any of these specific criteria would necessitate reclassification into a different HTS code, potentially within Chapter 61 or Chapter 64, depending on the nature of the deviation.

Frequently Asked Questions

›What is HTS code 9902.13.51?
HTS code 9902.13.51 covers Socks with uppers comprising neoprene measuring 2.5 mm in thickness and covered on both sides with jersey knitted fabric of nylon; such socks with underfoots of breathable neoprene measuring 2.5 to 3 mm in thickness and covered on both sides with a jersey knitted fabric of nylon; the foregoing each formed anatomically so as to be designed for the wearer's left or right foot (provided for in subheading 6115.96.90) under the US Harmonized Tariff Schedule. It falls under Chapter 99: Temporary legislation; temporary modifications proclaimed pursuant to trade agreements legislation; additional import restrictions proclaimed pursuant to section 22 of the Agricultural Adjustment Act, as amended.
›What products are classified under 9902.13.51?
This classification covers Socks with uppers comprising neoprene measuring 2.5 mm in thickness and covered on both sides with jersey knitted fabric of nylon; such socks with underfoots of breathable neoprene measuring 2.5 to 3 mm in thickness and covered on both sides with a jersey knitted fabric of nylon; the foregoing each formed anatomically so as to be designed for the wearer's left or right foot (provided for in subheading 6115.96.90). It falls under Chapter 99: Temporary legislation; temporary modifications proclaimed pursuant to trade agreements legislation; additional import restrictions proclaimed pursuant to section 22 of the Agricultural Adjustment Act, as amended.
›What is the import duty rate for 9902.13.51?
The general rate of duty for HTS 9902.13.51 is Free. Special preferential rates may apply: No change. The Column 2 rate is No change.

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