Footwear - Performance requirements for components for footwear - Outsoles

This document establishes the performance requirements for outsole components for footwear, in order to assess the suitability for the end use. It also establishes the test methods to be used to evaluate the compliance with the requirements. This document applies to outsoles for all kinds of footwear as defined in Table 1. This document can be used as a reference by the footwear manufacturer and the supplier.

Chaussures — Exigences de performance pour les composants des chaussures — Semelles d'usure

General Information

Status
Published
Publication Date
18-Nov-2024
Technical Committee
ISO/TC 216 - Footwear
Drafting Committee
ISO/TC 216 - Footwear
Current Stage
6060 - International Standard published
Start Date
19-Nov-2024
Due Date
17-Nov-2024
Completion Date
19-Nov-2024

Overview

ISO/TS 20939:2024 - "Footwear - Performance requirements for components for footwear - Outsoles" defines performance requirements and test methods to assess the suitability of outsole components for end uses. Applicable to outsoles for all kinds of footwear, this technical specification helps footwear manufacturers, component suppliers and testing laboratories verify compliance for durability, safety and functional properties of outsoles.

Key topics and technical requirements

The standard organizes outsoles into four exposure classes (A–D) from slight to heavy use and specifies essential and additional performance criteria. Key technical topics include:

  • Classification: Classes A (slight), B (medium), C (high) and D (heavy) to match expected exposure and shoe types (e.g., fashion, casual, sport, trekking).
  • Test methods referenced: ISO 17707 (flex resistance), ISO 20871 (abrasion), ISO 20872 (tear strength), ISO 20873 (dimensional stability), ISO 20874 (needle tear), ISO 20875 (split tear/delamination), ISO 22654 (tensile/elongation), ISO 24267 (coefficient of friction/slip), ISO 17708 (upper-sole bondability), ISO 20865 (compression energy).
  • Durability measures: Flex resistance (cut growth and crack limits), abrasion resistance (mass loss limits), tear and tensile strength, needle and split tear resistance, elongation at break.
  • Dimensional stability: Limits on permanent deformation after conditioning and testing.
  • Slip resistance: Coefficient of friction requirements on ceramic or Eurotile surfaces (forward/backward/flat slips) for finished footwear that claim slip performance.
  • Delamination and bondability: Requirements for multilayer outsoles and bond strength for assembly to uppers.
  • Essential vs additional requirements: Essential requirements must always be met; additional properties (e.g., compression energy) can be agreed between supplier and manufacturer.

Applications and who uses it

ISO/TS 20939 is practical for:

  • Footwear manufacturers specifying outsole performance for product development and quality control
  • Outsole and material suppliers providing compliant components
  • Testing laboratories performing standardized outsole tests
  • Procurement and compliance teams evaluating supplier claims
  • Designers and R&D departments balancing comfort, durability and safety

Using this standard improves product consistency, helps reduce failures in end-use conditions, and supports marketing claims when marking is applied.

Marking and labelling

Marking is optional. Only outsoles that meet all essential requirements may reference the document. If referenced, the label must include the manufacturer’s name/mark, intended footwear class (A–D) and the ISO/TS 20939 reference. Marking must not be visible on finished footwear.

Related standards

Relevant referenced standards include ISO 17707, ISO 17708, ISO 19952, ISO 20865–20875, ISO 22654 and ISO 24267. These define the specific test methods cited by ISO/TS 20939.

Technical specification

ISO/TS 20939:2024 - Footwear — Performance requirements for components for footwear — Outsoles Released:11/19/2024

English language
4 pages
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Frequently Asked Questions

ISO/TS 20939:2024 is a technical specification published by the International Organization for Standardization (ISO). Its full title is "Footwear - Performance requirements for components for footwear - Outsoles". This standard covers: This document establishes the performance requirements for outsole components for footwear, in order to assess the suitability for the end use. It also establishes the test methods to be used to evaluate the compliance with the requirements. This document applies to outsoles for all kinds of footwear as defined in Table 1. This document can be used as a reference by the footwear manufacturer and the supplier.

This document establishes the performance requirements for outsole components for footwear, in order to assess the suitability for the end use. It also establishes the test methods to be used to evaluate the compliance with the requirements. This document applies to outsoles for all kinds of footwear as defined in Table 1. This document can be used as a reference by the footwear manufacturer and the supplier.

ISO/TS 20939:2024 is classified under the following ICS (International Classification for Standards) categories: 61.060 - Footwear. The ICS classification helps identify the subject area and facilitates finding related standards.

You can purchase ISO/TS 20939:2024 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of ISO standards.

Standards Content (Sample)


Technical
Specification
ISO/TS 20939
First edition
Footwear — Performance
2024-11
requirements for components for
footwear — Outsoles
Chaussures — Exigences de performance pour les composants des
chaussures — Semelles d'usure
Reference number
© ISO 2024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Classification . 2
5 Requirements . 2
5.1 General .2
5.2 Performance requirements for outsoles for footwear .2
6 Marking and labelling . 3

iii
Foreword
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This document was prepared by Technical Committee ISO/TC 216, Footwear.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.

iv
Technical Specification ISO/TS 20939:2024(en)
Footwear — Performance requirements for components for
footwear — Outsoles
1 Scope
This document establishes the performance requirements for outsole components for footwear, in order
to assess the suitability for the end use. It also establishes the test methods to be used to evaluate the
compliance with the requirements.
This document applies to outsoles fo
...

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