The weather in nature changes quickly, so we recommend that you wear a waterproof and breathable jacket when participating in outdoor hiking and mountaineering activities.
It is not difficult to choose the right jacket. According to different waterproof coefficients and breathability coefficients, the following suggestions can help you find the best choice for you. When choosing a waterproof jacket, there are two factors to consider: waterproofness and breathability.
1. Waterproofness
The waterproof coefficient refers to the water pressure resistance of the fabric produced during the processing of the fabric. Calculated per square millimeter (mm) area, the maximum How many millimeters (mm) of water column can it withstand without water seepage? The higher the water pressure value a piece of fabric can withstand, the stronger its water resistance.
Generally, the waterproof coefficient of jackets ranges from 2000mm to 15000mm. The larger the coefficient value, the better the water pressure resistance (waterproofness). Therefore, you can choose jackets with different waterproof coefficients according to the degree of waterproofing required.
Medium rain protection: A jacket with a waterproof coefficient of 2000mm means it can provide protection from moderate rain with a rainfall of less than 30 mm in 1 to 2 hours.
Heavy rain protection: A jacket with a waterproof coefficient of 5000mm means it can provide protection in heavy rain with a rainfall of 40mm within 3 hours.
Heavy rain protection: A jacket with a waterproof coefficient of 10000mm-15000mm means it can provide protection in heavy rain with a rainfall of 100mm within 4 hours.
2. Breathability
Another thing to consider is the intensity of outdoor hiking and mountaineering activities. The greater the intensity, the more you will sweat. At this time, you need something that is breathable. coat.
The lower the RET impedance value of the fabric, the smaller the resistance for moisture to pass through the material. The moisture generated by the body’s movement will evaporate more easily, and the fabric will be more breathable. (For example: RET<9=extremely breathable/9<RET<12=very breathable/12<RET20=not very breathable)
On a high-performance waterproof and breathable jacket , with breathable zippers at the armpits. Can provide faster breathability.
The above are the two major factors for choosing a waterproof jacket. Remember that the larger the waterproof coefficient value, the better the waterproofness, and the smaller the breathability coefficient RET value, the better the breathability. OK!
