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Fabric weight class [20].
| Fabric weight class | Fabric weights (oz/yd2) | Fabric weights (g/m2) |
|---|---|---|
| Very light weight | Less than 1 | Less than 35 |
| Light weight | 2.0–3.0 | 70–100 |
| Medium weight | 5.0–7.5 | 170–240 |
| Heavy weight | 9.5–12.0 | 300–375 |
| Very heavy weight | More than 15.0 | More than 475 |
