WHAT DO THE NUMBERS MEAN?
|
Wp (Water Penetration Resistance) |
Function |
| Class 1: >1500 mmH2O | Minimum British standard for a jacket to be called Waterproof. *Good for skiing, snowboarding, London rain |
| Class 2: 15000-20000 mmH2O | Can resist heavy rain, snow, though it will soak through over time. *Proper waterproof for downpours |
| Class 3: >20000 mmH2O (e.g. Gore-Tex) |
Can resist all conditions, even carrying heavy loads. *Mountain ventures, sailing |
