The trenchcoat was first developed for servicemen during World War I and later became popular for both men and women due to its versatility and evergreen style.

The water column of a fabric is a
measurement used to determine its waterproofness or water resistance. It refers to the amount of water pressure that a fabric can withstand before it starts to leak or allow water to penetrate through.

The water column is measured in millimeters (mm) and is determined by conducting a test known as the hydrostatic head test.
In this test, a column of water is placed on top of the fabric, and the height of the water column is gradually increased until water begins to penetrate through the material.

The higher the water column rating, the more water pressure the fabric can withstand before it becomes permeable to water. For example, a fabric with a water column rating of 10,000mm can withstand the pressure exerted by a 10-meter column of water before it starts
to leak.

Waterproof fabrics, such as those used in raincoats or outdoor gear, typically have high water column ratings, often ranging from 5,000mm to 15,000mm (rain couture applies 5K-15K, depending on the
fabric, material and purposes of the style). Water-resistant fabrics, on the other hand, have lower water column ratings and are designed to repel water to
some extent but may eventually allow moisture to seep through under prolonged exposure or high-pressure conditions.

There are other factors that play a role in the waterproof rating too:
1. Whether the garment’s seams are taped. Of course at Rain Couture we apply seam taping at every style.
2. Construction quality: Rain Couture garments are known for their high-quality construction and attention to detail. We emphasize craftsmanship and durability in the production of our rainwear, ensuring that each garment meets rigorous standards. Furthermore; we employ reinforced stitching techniques to enhance the durability and longevity of our garments.
3. Fabric breathability: Waterproofness refers to a fabric's ability to prevent water from penetrating through its surface. It is crucial for keeping you dry in wet conditions. On the other hand, breathability refers to the fabric's ability to allow moisture vapor, such as sweat, to escape from inside the garment, preventing you from feeling clammy or overheated. Finding the right balance between these two properties is essential because a highly waterproof fabric with limited
breathability can trap moisture inside, leading to discomfort and potential condensation. On the contrary, a highly breathable fabric with lower waterproofness may allow water to penetrate, resulting in wetness.

• Wet spots on the outside of the coat are normal and indicate where you got exposed to
rain for a longer time.

• The fabric is made of textured materials that eventually gets wet on the surface. But…

• The rain does not go through the fabric because a (breathable) lamination is applied on the inside of the shell fabric and there are taped seams.

• If it was a coat made of plastic, there would be no spots on the outside since plastic fabric itself is waterproof without lamination or texture.

However, plastic does not breathe nor is very comfortable or fashionable.

• So therefore Rain Couture uses an advanced quality breathable lamination with a water column rating of 10,000, which is higher than other brands in the market
(4,000, 6,000 or 8,000k).

• There is also a water-resistant layer (DWR treatment) on top of the coating that helps repel light rain but it’s the lamination on the inside which makes the coat
waterproof.

• Wet spots on the inside of the coat would be an unusual issue that needs examination by the Rain Couture team.

On overall, do keep in mind that this coat is not a plastic bag and does not hold rain forever since it is made of a fashion material with a breathable coating.
With a watercolumn of 10k and 15k with breathable characteristics, we did a good job in protecting you as good as possible.

However we can never specify how long your coat will be waterproof since this depends on the intensity of the rain.

Rain Couture uses an advanced quality breathable lamination with a water column rating of 10,000, which is higher than other brands in the market (4,000, 6,000 or 8,000k). This means that our fabrics can withstand heavy rainfall for longer periods compared to other brands.

In addition to this coating layer, there is also a water-resistant layer (DWR treatment) on top of it that helps repel light rain.

• Our fabrics are made of textured materials that eventually gets wet on the surface. But…

• The rain does not go through the fabric because a (breathable) lamination is applied on the inside of the shell fabric and there are taped seams.

• If it was a coat made of plastic, there would be no spots on the outside since plastic fabric itself is waterproof without lamination or texture.

However, plastic does not breathe nor is very comfortable or fashionable.

• So keep in mind there is a balance to strike when it comes to waterproofness and breathability.