How can you identify waterproof rain jackets?

As soon as the first drops fall, we pull it back out of the wardrobe: the raincoat. We brave downpours and gusty winds with confidence—but have you ever wondered how waterproof jackets are tested, or how to spot a truly good rain jacket? Handy if you’re still looking for a new men’s coat for autumn and winter!

By Pascal·14-11-2023·Calculate reading time
How can you identify waterproof rain jackets?
Water-repellent or waterproof—what’s the difference? Find out how brands test rain jackets and how to spot a truly waterproof men’s jacket.

Water-repellent or waterproof?

First of all, it's important to clarify the difference between these two commonly used terms. Water-repellent means that the jacket is designed to fend off drizzle or light precipitation. These jackets usually have a special coating that lets raindrops roll off you easily, like beads. Waterproof jackets are made from materials that offer full protection during prolonged exposure to heavy precipitation or snow. You can also recognise this type of jacket by its sealed seams and waterproof zips.

How are rain jackets tested?

Before you buy a waterproof rain jacket for men, it's good to know how manufacturers evaluate the effectiveness of their jackets. Below is a list of the most common test methods:

Water column test

For this test, a tube 2.5 cm wide is placed on the fabric. It is gradually filled with water and put under pressure until a leak occurs. The level is indicated in millimetres. From 1000 mm, a jacket is considered waterproof. Based on this, a jacket can be given one of the following ratings:

  • 0 – 500 mm
    The jacket is suitable for a few drops and light rain.
  • 500 – 1500 mm
    The jacket withstands light rain and splashing water.
  • 1500 – 5000 mm
    With this jacket you can comfortably go for a walk in moderate precipitation.
  • 5000 – 10.000 mm
    These jackets are suitable for outdoor activities such as winter sports.
  • 10.000 – 20.000 mm
    The jacket can withstand heavy rainfall and snow showers, ideal for mountaineering.
  • 20.000 mm and higher
    With this jacket you can brave extreme weather conditions, such as on an expedition.

The water column rating is usually on the label on the inside of the jacket, on the left near the hem or waist. Look for terms such as “water column” or “waterproofness”. The rating may also be stated in the jacket's care instructions as part of the technical details. Do be aware that not every brand puts a water column rating on its jacket. In such cases, it's wise to consult the manufacturer's website. You can, of course, also seek advice by phone or visit a store.

Rain test

In this test, the jacket is exposed to artificial rain to see how well it withstands moisture. The jacket is usually placed on a mannequin or model and exposed to a continuous stream of water, similar to a rain shower. The jacket is inspected for leakage, and the time it takes for the jacket to become soaked can be measured.

Splash and waterproofness test

These tests simulate various weather conditions, including rain and splashing water. The jacket is exposed to jets of water at different pressure levels to assess how well it resists water penetration.

Breathability test

Although this does not directly measure waterproofness, it is important to check whether waterproof jackets are breathable. This means that the jacket lets sweat escape from the inside out, while keeping moisture from outside at bay. These tests are often assessed using specific breathable membranes such as Gore-Tex and eVent.

Visual inspection

In addition, rain jackets are visually inspected for any defects. Think of seams that are not properly sealed, zips that may let water through, or other weak spots in the design.

Be aware that manufacturers may use different standards and test methods. It is therefore wise to check which specifications they use and which tests have been carried out. That way you know exactly what to expect. Do keep in mind that even waterproof jackets need maintenance over time. Contact the manufacturer or consult the website for further instructions and advice. Here are a few more tips for choosing a new waterproof rain jacket for men:

How to spot a good rain jacket?

When you see a nice rain jacket hanging there, it's wise to first be clear for yourself about when you want to wear the jacket. After all, you have different requirements when going on a winter sports holiday than when looking for a jacket for your daily car commute to work. Check the water column rating on the jacket's label and match it to the expected weather and activities. Also look at the material used and the construction of the jacket. Pay particular attention to whether the jacket has sealed seams and waterproof zips so that no water gets in.

How should a raincoat fit?

You wear a jacket over your clothing, so the fit of the rain jacket shouldn't be too tight. Also consider the length of the jacket, the hood, and the number and location of pockets. Breathability is especially important if you plan to be active, because you don't want to end up soaked in sweat after all. Ask about the jacket's maintenance and make sure the zips and fastenings work smoothly. In addition, it is always useful to read online reviews and seek advice from experts. Don't forget to try the jacket on when you get the chance. Pay attention to wearing comfort and functionality.

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