The clothes can be washed together with other clothes. Colored laundry, maximum 60 degrees. But for the preservation of the clothing, we always recommend 30 to 40 degrees. The duration of the washing program also has an influence, if possible use a program that is as short as possible.

Do not use fabric softener or chlorine bleach. Chemical cleaning is not allowed.

Do not use a tumble dryer.

The effect remains active up to at least 80 washes. With socks, this is slightly less due to the fabric and use, up to 60 washes.

The rule is, of course, if the clothing is worn, then the functioning can no longer be guaranteed.

The clothing is treated with Permethrin. This is already done before the clothing is “assembled”. For example, permethrin is the least harmful to humans.
This effect ensures that the so-called "hot feet effect" occurs. This ensures that when a tick comes into contact with our clothing, it becomes paralyzed almost immediately and falls off the clothing.

Is permethrin not harmful to humans?Copolymer technique from UtexbelAmount of P(permethrin)?Which washing instructions?

Permethrin can certainly be harmful to humans, but not in the amounts that are used in our clothing. Of course, our quantity meets the guidelines of the WHO.
It can be compared with this: our clothing is only harmful to you if you wear a complete Rovince outfit (socks, trousers, blouse) for 60 hours a day.

Compare it to alcohol. If you drink a glass of wine every day, it won't hurt, but if you empty one or two bottles every day, there is a long-term health risk.

The active substance permethrin is bound in a copolymer (mainly acrylate and silicone elastomer (polysiloxanes)). This combination ensures a perfect balance between durability (wash resistance) and bioactivity (the silicone elastomers allow the permethrin to diffuse out gradually and sustainably).

Rovince does not use monomer in the clothing. A monomer technique only ensures the wash resistance, but prevents a constant availability of the active ingredient permethrin on the surface of the coating. Monomer applications will indicate the correct amount of permethrin, but lack the necessary bioavailability (the permethrin is then encapsulated, so that the insects are hardly influenced by it). Result no effect. The effect is expressed in the bioactivity of a product.

Experimentally, 1250 mg/m2 was established as an ideal amount: sufficient to keep the insects away, and not excessive to cause problems for the wearer.These limits were set by the US Army in the 1980s and have since become accepted worldwide as the standard.The cut-off value was also recorded here: as soon as the lower limit of 200 mg is reached, the garment needs to be replaced.

A synthetic pyrethroid, a naturally occurring insecticide found in chrysanths.

As for any product (alcohol, nicotine, dioxin, etc.), the WHO has imposed values ​​that must not be exceeded (Allowed Daily Intake). Long-term wear tests in the German army, spread over two climatic zones (Afghanistan and Europe), and hundreds of test persons of different skin color and gender, showed through an analysis of the dermal absorption (uptake of permethrin through the skin) that the measured values ​​​​are 5 times below the ADI (with exposure of at least 12 hours/day).

Rovince uses approx. 1250-1300 milligrams/m2 Cis/trans permethrin, depending on the base tissue. This dosage gives a minimal effect on the human body. A complete uniform (trousers and shirt) will release a 5 microgram/kg body weight permethrin per day. This is a factor of 5 below the ADI (Allowed daily intake) of the WHO standard. The standard is 25 micrograms/kg body weight per day.

In short: one must wear a complete Rovince uniform 60 hours a day to meet the WHO standard (ADI).

The absorption of permethrin proceeds dermal into the endocrine system, after which it is largely excreted through the urine. Only a small residual fraction leaves the body via the faecal route. Based on these measurements, the treated fabric was released for daily use. The negative consequences of wearing the fabric were very minimal and not of such a serious nature (influences noted: slight itching and irritation) that these would outweigh the benefits (protection against, among other things, ticks).
The scientific articles are available for inspection at Rovince BV (Contact: Rovince BV Communications Department).

Which regulations apply to critical target groups (pregnant women and children)?What is DEET?

Wearing permethrin-treated clothing by pregnant women is not recommended.There is no scientific basis for drawing concrete conclusions.
The US military allows their female soldiers to wear untreated clothing (at their own risk for Lyme, malaria, etc.) during their pregnancy.

As permethrin is a contact insecticide, it causes a Hot-Feet effect on insects, causing them to leave the treated substance as quickly as possible.If the insect is forced to remain on the treated tissue under laboratory conditions (WHO test), confusion and backing occurs after a short time, followed by death.This time is mainly dependent on the amount and bioactivity of the available active ingredient permethrin.Not only the amount plays a role here (ideally around 1300 mg/m2), but also the bioactivity (the effective availability of permethrin at the surface of the treated surface).If permethrin is not properly processed in the clothing, it will not have any effect on insects due to the lack of bioactivity.

Since it is a contact insecticide, it will only work if there is effective direct contact between the insect and permethrin for a certain period of time. The smaller the insect, and the larger (= relative) the contact surface between the insect and the active substance permethrin, the greater the effect of the clothing.
A bee is too big and heavy, and has too few contact points (legs) to be fatally hit. A tick, on the other hand, has a large contact surface, so that the effect is almost immediate/quasi instant.
Permethrin is therefore excellent against ants, ticks, fleas, lice, mosquitoes, sand flies, in short small insects. Larger insects (horses, bees, etc.) can also be hit, but then the dose has to be increased, which in turn is not suitable for clothing because of a potentially too high ADI / tolerable amount for human health.

The active ingredient (Cis/trans Permethrin) is insufficiently present in Rovince clothing and is anchored so deeply in the fibers that it therefore has no negative consequences for insects of the order of magnitude of bees and horseflies.

There is no immediate danger to the aquatic environment. The minimal dose that goes with the flushing water to the sewers is very quickly diluted there very quickly and neutralized by the bacteria in the bottom of the rivers and streams. After a few days there is no trace of it anymore. The Rovince clothing can be washed at home without any problems.

The pure product permethrin, on the other hand, must of course not end up in nature. That is why the industrial treatment at Utexbel is done in a completely closed circuit.

Analyzes done after spraying permethrin with airplanes from large areas in Canada (mosquito infestation) showed that the residues in the rivers had no harmful effect on fish. Crustaceans and eels do store the permethrin longer in their tissues, but no causal mortality was established here either.
You can therefore safely wade through a stream with treated Rovince trousers without negatively influencing the surrounding environment.

Rovince clothing has nothing to do with Nefast. The so-called Neonicoteids are harmful, as Bayer markets them for watering rapeseed fields.

No negative influences of UV radiation have yet been measured and/or determined, which would reduce the efficiency of the Rovince clothing.

In recent decades, no product has been tested and studied as frequently (scientifically) as permethrin-impregnated clothing.
Especially from Germany, several scientific studies have been published that relate to both the effectiveness of permethrin and any health risks.
The most recent publication is from 2017, in which the German “Bundesinstitut fur Riskbewertung” considers permethrin (if applied correctly) as not “sensitive”.

This is a national Dutch standard that sets requirements for factory-treated permethrin-treated body coverings that help protect against tick bites. The standard concerns clothing that covers clothing, in which the textile has been treated in the factory with the substance permethrin, after which clothing is used for covering. The covering clothing as such helps to protect against tick bites, the treatment with permethrin is an additional element for this protection.

The company Dermatest GmbH is a research institute
in the dermatological field. They work closely with scientists from the Universities in Paris and Bilbao, who specialize in skin care.

Once every two years we have our permethrin finish dermatologically tested and assessed by Dermatest GmbH. Also for the next two years we have again received the certificate “Very good”.