|Breathability Scale (Grams)|
The waterproof rating number simple means the number of millimeters of water placed on the area of the jacket before the water would start to seep through.
|5k||Light rain or dry snow|
|10k||Light rain or light snowfall|
|15k||Steady downpour and wet snow|
|20k||Heavy rain and wet heavy snow|
|Gore-Tex||Very high pressure rain and wet heavy snow|