How waterproof is my jacket?
All Macpac rainwear with a hydrostatic head (HH) rating over 5,000mm is waterproof. The higher the hydrostatic head, the higher the level of protection in sustained wet weather.
| WATERPROOF RATING HH (MM) | BEST USE |
|---|---|
| Under 5,000 | Light showers - water-resistant, not waterproof |
| 5,000 | Light rain, travelling and commuting |
| 10,000 | Rain across most everyday conditions |
| 15,000 | Moderate rain for long periods |
| 20,000 | Heavy rain for prolonged periods |