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How does it works ?

This is a patented technology.  INDUO® fabric is made of cotton. Its special properties can be explained by the combination of two qualities:


1. Repellency 

The fabric is hydrophobic and lipophobic and thus repels liquids


2. Breathability

The cotton helps disperse perspiration to prevent underarm rings and the odors often associated with them.


Amazingly, these characteristics change nothing in the fabric’s hand and actually make it more appealing to the touch.


To be clear, “water-repellency / oil-repellency” doesn’t mean “waterproof / oilproof”.


Water-repellency is defined as a surface’s ability to repel liquids … up to a certain point.


To explain how water-repellency works, it is first necessary to explain what a liquid is.

Besides their seemingly great diversity, all liquids are made up of either water or oil. Water and oil are both known as solvents. Besides water or oil, the “rest” of the components in a liquid are called solute.

A liquid is a solvent in which a solute has been dissolved or diluted.

This is why, to repel a liquid, we just need to be able to repel its solvent.

To make INDUO® fabric repel water and oil, its cotton fibers were made to be hydrophobic and lipophobic.


So how come certain liquids can penetrate fabric? What does “up to a certain point” mean?

When subjected to a fairly high level of pressure, liquid can penetrate a fabric. Knowing this is essential when caring for your garment. Your washing machine will reach this level of pressure so it can pass water and detergent into a fabric. However for this reason, it isn’t recommended to rub a spot.


Breathability helps disperse your perspiration as vapor.


What is perspiration and where does it come from?

Perspiration is secreted by sudoriparous glands located just below the skin’s surface. There are two kinds of sudoriparous glands


> Eccrine glands

They play a key role in regulating body temperature (heat, physical effort). The perspiration they secrete has no odor and is essentially made up of water, mineral salts and lactic acid.


> Apocrine glands

These are located under the armpits. Their activity is not triggered by heat but instead responds to psychological stimulus (emotions, stress). This perspiration is rich in lipidic, uric and ammoniac components. Though different from the previous type of perspiration, this type of sweat is also odorless.


So where do unpleasant odors come from?

Odors aren’t caused by perspiration but by bacteria that are naturally present on the skin’s surface. These bacteria are nourished by absorbing perspiration secretions, transforming and then expelling them as odorous molecules. Other secondary factors also influence body odors like hairiness or diet.


How do my clothes help to aggravate this phenomenon? 

Cotton is hydrophilic. For this reason, cotton clothing actually absorbs perspiration. The problem is that once it is absorbed, perspiration is stored inside a fabric’s fibers, an ideal setting for bacteria to proliferate and unpleasant odors to build up. And the more you perspire, the more this problem spreads. This is how sweat rings are formed.


What difference does the INDUO® fabric bring?


>It avoids sweat rings 

Unlike traditional cottons that become saturated with water, INDUO® fabric repels liquids and thus perspiration. This limits the spreading of rings.


>It evacuates perspiration

So perspiration doesn’t remain in the garment, we have made INDUO® fabrics breathable. Perspiration is naturally dispersed since it evaporates into the air as gas. But INDUO® fabrics repel liquids, not gas. Thus their breathability helps gas pass quickly through the fabric. For this reason, your perspiration is dispersed rapidly. Ultimately you avoid the formation of rings and the development of the bacteria that will cause unpleasant odors.