Every footwear sole test report includes a “DIN abrasion” value, usually shown in cubic millimetres. Most procurement teams glance at the number, check that it’s under 150, and move on. But that single value tells you more about how long your shoes will last than almost any other test on the report.
Wear-through is the most common reason customers stop wearing a pair of shoes — not upper damage, not stitching failure, not sole separation. If the rubber compound on your outsole fails the abrasion benchmark, you’re shipping shoes that get discarded within months instead of years. Returns climb. Reorder rates fall. Brand reputation erodes quietly.
For procurement officers, technical buyers and QC managers, DIN abrasion testing is one of the few internationally comparable metrics that lets you evaluate a supplier’s compound objectively — across geographies, across material types, across price tiers.
This guide explains what DIN abrasion testing is, how the test is actually performed, what the ≤150 mm³ benchmark means in practice, how to read a test report, and why this single number should be on every footwear buyer’s QC checklist.
In one sentence: DIN abrasion testing measures how much rubber wears away when a sample is rubbed against an abrasive surface under controlled conditions — the result is reported in cubic millimetres, and ≤150 mm³ is the industry benchmark for high-quality footwear soles.
What Is DIN Abrasion Testing?
DIN abrasion testing is a standardised laboratory method for measuring how resistant a rubber compound is to wear. A rubber sample is rubbed against an abrasive surface under specific conditions, and the volume of material lost is measured. Lower numbers indicate better abrasion resistance.
The test was originally defined by DIN 53516, a German Industrial Standard (Deutsches Institut für Normung). It’s now harmonised internationally as ISO 4649, and the two standards are technically aligned — a result tested under one is comparable to a result tested under the other. Test reports often reference both: “tested per DIN 53516 / ISO 4649.”
The result is reported as abrasion loss in cubic millimetres (mm³) — literally, how much rubber by volume was worn away during the standardised test.
DIN abrasion is used across rubber industries — tyres, conveyor belts, industrial seals, hose products — but it’s especially important in footwear sole manufacturing. The outsole is the single part of a shoe that’s in constant frictional contact with rough surfaces, and abrasion resistance directly determines how long the outsole lasts in real-world walking.
For buyers sourcing rubber sole sheets, rubber top lifts and rubber fore parts — the high-wear components of any shoe — DIN abrasion is the headline performance specification.
How DIN Abrasion Testing Actually Works
Understanding how the test is performed helps you interpret what the numbers on a report actually mean. The procedure is genuinely simple, which is part of why it’s become an international standard.
- Sample preparation. A cylindrical rubber test piece is cut to standard dimensions — typically 16 mm in diameter and around 6 mm thick.
- Mounting. The sample is mounted on a holder that applies a specified force, usually 10 newtons, against the abrasive surface.
- The abrasive drum. The test runs on a rotating drum covered with a standardised abrasive sheet — typically 60-grit aluminium oxide. The drum has a 150 mm diameter.
- The test run. The drum rotates while the sample holder traverses laterally across the abrasive surface. The total abrasion contact distance is fixed — usually 40 metres.
- Weighing and calculating. The sample is weighed before and after the test. The mass loss is converted to volume loss using the rubber’s known density. The result is reported in cubic millimetres.
- Calibration. The abrasive sheet itself wears down during testing, which would skew results over time. So the test is calibrated against a reference rubber compound, and a correction factor is applied to keep results comparable across labs and across time.
A DIN abrasion test result of 100 mm³ means 100 cubic millimetres of rubber was worn away during the standardised test. The lower the number, the more wear-resistant the rubber.
The test is destructive — the sample is consumed during testing — but it uses very small material volumes, so it’s a low-cost, fast and highly repeatable QC check that production teams can run routinely.
Why ≤150 mm³ Is the Industry Benchmark for Footwear Soles
A DIN abrasion value of 150 mm³ or lower is widely accepted as the minimum standard for footwear rubber compounds expected to deliver durable, long-wearing outsole performance.
| DIN Abrasion Value (mm³) | Quality Tier | Typical Application |
| ≤80 | Premium | High-performance athletic, military, hiking boots |
| 80–150 | High quality | Quality casual, formal, work and dress shoes |
| 150–200 | Mid-market | Mass-market footwear, school shoes |
| 200–300 | Budget | Promotional, disposable, single-season footwear |
| >300 | Below standard | Not recommended for durable footwear |
The 150 mm³ threshold is industry convention, not a binding regulation. But it’s such a well-established convention that major footwear brands use it as a baseline procurement specification. Some premium athletic brands set internal thresholds at ≤120 mm³ for their performance lines; some military and hiking footwear contracts require ≤80 mm³.
One practical buyer note: always verify the test was performed per DIN 53516 / ISO 4649 specifically. Some test reports give “abrasion loss” values without referencing a method — these are not directly comparable to DIN values and can be misleading. If the report doesn’t cite the standard, ask the supplier to retest under the proper method before accepting the compound.