When selecting clothing for outdoor activities, it is important to consider the water column of the fabric to ensure that the clothing is suitable for its intended use.
The water column is a measure of a fabric's resistance to water penetration and is used as a standard for determining the waterproofness of outdoor clothing and gear. It is defined as the height of a column of water that the fabric can withstand before water begins to penetrate through to the other side. The higher the water column, the more waterproof the fabric is.
Water column is typically measured in millimeters (mm). For example, a fabric with a water column of 20,000mm is considered to be highly waterproof, meaning it will provide excellent protection against rain and other forms of precipitation, even in heavy rain or prolonged exposure to water. A fabric with a water column of 10,000mm is considered to be water-resistant. It will provide some protection against rain and other forms of precipitation, however, in heavy rain or prolonged exposure to water, the fabric may begin to leak.
Below is a list of the Arrak jackets and their respective water column. We hope you find this information helpful when deciding on which jacket will fit your needs.
Summit Jacket |
20,000mm |
Protective Rain Jacket |
10,000mm |
New Original Winter Jacket | 10,000mm |
Winter Parka |
10,000mm |
Raincoat |
10,000mm |
Original Winter Jacket (Outlet) |
5,000mm |
Akka Softshell Jacket |
3,000mm |
Hybrid |
3,000mm |
Trek |
3,000mm |