FAQ: Nanodri | World´s first heat relief hybrid shirt
For the most up-to-date information about the status of our project, check our project updates on Kickstarter!

How long does the sweat-blocking effect last?

The sweat repellency properties of the outer layer of the fabric are built on nanotechnology-based molecular reactions within the fabric itself, not spray-on chemicals. So even after 100 washes, significant sweat repellency remains an intrinsic property of the fabric.

If you find that the water repellency of the outer fabric layer is starting to weaken after several washes, simply iron your shirt on medium heat (steam or dry, under 160°C / 320°F), using a damp cloth to press. The heat from the iron will align the molecules on the surface of the fabric to recharge the fabric so it has stronger repellency.

Last updated: September 13, 2019 04:44

The hybrid shirt is water repellent on the outside. How can it be cleaned in a washing machine? Doesn’t the water just bounce off?

While the shirt may be water repellent, dirt, dead skin and other microscopic particulates can still stick to it in some cases. Water will simply remove the adherent gunk that happens to attach to the outer layer over time. Of course, the inside of the shirt is water absorbent, so detergent has the typical cleaning effect here.

Last updated: September 13, 2019 04:28

Are the hybrid shirts water-proof?

No, they are water repellent. If they were water-proof, they wouldn’t be breathable and you would not be able to cool off your body or evaporate the accumulated sweat. You would literally be swimming in your own sweat.

Last updated: September 13, 2019 04:28

Water-proof and water repellent, what’s the difference?

Waterproof means that no water can go through at all regardless of the pressure applied. This usually involves sealing the fabric with a water impenetrable membrane. Doing this however sacrifices breathability and also significantly reduces the stretchability of the fabric and this is unacceptable for an undershirt. Ever try taking off a non-stretchable sweat-soaked undershirt? Not a pleasant task. And being able to rid yourself of sweat through evaporation with the help of breathable fabric is essential to keeping cool.

Water repellency means that water beads off the fabric and is prevented from going through, but water vapor and gases can still pass. However, if the pressure of the water is high enough, e.g., if the water hits the fabric at a high velocity, it will pass through. This is obviously not a problem as far as blocking sweat is concerned unless of course, you shoot out sweat drops at speeds faster than raindrops in a thunderstorm.

Last updated: September 13, 2019 04:28

Are the hybrid shirts oil-repellent?

They are oil-repellent to some degree. Oil from the skin is primarily absorbed into the inner sweat-absorbent layer of the fabric, where it stays until washed.

Last updated: September 13, 2019 04:28

How do I wash a Nanodri hybrid shirt?

Wash in water at or below 40 degrees C and line dry. You will find that by the time your shirt comes out of the spin dry cycle of your wash, it’s already nearly dry! Try to avoid the use of fabric softener, which may decrease the effectiveness of the water repellency effect.

Last updated: September 13, 2019 04:44

Does the hybrid shirt require any special treatments such as ironing or special detergents to make it work?

No, you treat the shirt as you would any other shirt. No ironing or special detergents or treatments necessary.

Last updated: September 13, 2019 04:28

Are there any things I should not do regarding the hybrid shirts?

The only major thing to avoid is the use of fabric softener, which may decrease the effectiveness of the water repellency effect. Also, while dry cleaning may not harm the shirt’s effectiveness, it is best not to dry clean just to be safe. It is also unnecessary.

Last updated: September 13, 2019 04:28

Are the hybrid shirts see-through?

Nanodri Sweat-blocking hybrid shirts are thin enough to wear under regular t-shirts or button-downs, but thick enough to not be see-through; thus, you can either wear the shirts as you would a traditional undershirt or on their own as a t-shirt.

Last updated: September 13, 2019 04:28

Do the hybrid shirts block sweat from coming through all over, or only in the underarms?

The hybrid shirts have all-over protection.

Last updated: September 13, 2019 04:28

Is the fabric safe?

Nanodri fabrics are EPA and FDA compliant. We use similar chemicals as some of the major clothing labels that sell water repellent jackets and other outer garments. The difference is in the patented fabric processing, which is where our Japanese partners come in. We can make very thin stretchy materials water repellent and have the effect retained through more than 100 washes.

Last updated: September 13, 2019 04:28

Shipping Updates
For the most up-to-date information about the status of our project, check our project updates on Kickstarter!

Current Estimated Shipping Date: February 2020

Last Updated At: 12/02/19 | See Kickstarter Update
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