frequently asked questions

Currently there are no any other products like the Invi Bracelet, so we can imagine you have some questions. Please find the answers to the most frequently asked questions below. If you have any other questions, please contact us directly.

get answers to frequently asked questions

about the invi bracelet

What is it?

The Invi Bracelet is a self-defense product that can be used as a nonviolent way of self-defense. After activating the bracelet a foul-smell is released which repels an attacker and alarms people in the surroundings.

Key characteristics that make the Invi Bracelet unique:

  • strong repellent effect from close by
  • alarms others over a 100 meter distance
  • nonviolent
  • always within hand reach
  • small and stylish Dutch design
  • reliable patented safety mechanism
  • no power source required
How does it work?

The Invi Bracelet can be activated to release a repellent smell. It contains a capsule which can be broken once in case of emergency.

To unlock the bracelet from ‘safety mode’, press the safety button. Put your fingers behind the clasp and break the capsule with a firm pull (see manual).

After activation the gas-like smell can be noticed within seconds, lasting up to several hours. The smell works disturbing and repellent. However, reactions differ per person. The smell can reach over 100 meters distance and can help to alarm others in the surrounding.

For whom is it?

The Invi Bracelet is designed for all.

Some people wear the Invi Bracelet to feel safer, more confident and stronger. Others wear the Invi Bracelet to make a statement against sexual violence and break the taboo around the topic.
You can use the Bracelet for everyday wearing, for travel and for sport acivities.

A minimum age of 14 is advised.

When can it be used?

For self-defense only! Use the Invi Bracelet only as a last defense option. Try to get away, scream for help or asses other options to get into safety as quickly as possible. The product is mainly intended for, but not restricted to, self-defense in the case of sexual violence.

Please keep in mind that irresponsible use of the bracelet and the gas-like smell may have serious (financial) consequences (please also refer to the section “Are there any risks?”). The wearer is responsible for assessing the situation prior to using the bracelet. For example, do not use the Invi Bracelet in a crowded bar if there are other options to ward off a touchy drunk.

Are there any risks?

Irresponsible use of the bracelet and the gas-like smell may have serious (financial) consequences including:

  • panic reactions of bystanders resulting in injuries
  • evacuations (aircrafts, buildings or other public areas)
  • loss of income (bars and restaurants)
  • deployment of emergency services
  • damage to clothing or other properties, including those of others.

Although use of the Bracelet is not an aggressive or violent act towards an attacker, be aware that an aggressive response can not be excluded. Please also refer to the section “How does the smell work?” and “Is the smell safe to use?”

How to activate in a stressful situation?

One of the mayor advantages of the Invi Bracelet is that it is always within hand reach.

Nevertheless, we advise to practice using the safety button to ensure quick activation when required. By making yourself acquainted with the first two activation steps (see manual) enables you to respond more adequately in a stressful situations.

It is also advised to regularly check whether the bracelet goes quickly out of safety mode after pressing the safety button (please also refer to the section “What about maintenance?”).

Can it be activated accidentally?

Invi designed a patented safety mechanism making sure the bracelet can not be accidentally activated while in safety mode.

Sometimes the safety button can be triggered accidentally. No worries, also when the bracelet is not in safety mode, quite some force is required to activate it. Just press both sides to put the bracelet in safety mode (see manual).

What to do after activation?

Go to a safe place. Remove bracelet from wrist. Remove contaminated clothes and move to fresh air. In case of skin contact: rinse skin with water and soap for at least 15 minutes. In case of eye contact: rinse eyes with water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Consult a doctor when symptoms persist. People with respiratory diseases can use their own medication.

Do not throw the Invi Bracelet away, but preserve in an air-sealed plastic bag, as it could be used as evidence.

Always call emergency services after use to inform about the gas-like smell. Please also inform Invi via hello@invi.world

For waste disposal, please consult your local waste collection point.

Can you refill after use?

The Invi Bracelet is a one-time-use-product and cannot be refilled after use. This product should be activated only as a last defense option.

How to open and close the clasp?

Some people, especially those who are not used wearing bracelets, sometimes experience difficulties opening and closing the clasp. This is because the clasp has to endure heavy forces during activation.

To open/close press the tip of the clasp all the way down (see manual). The more your practice, the easier it gets!

What sizes are available?

The Invi Bracelet can currently be ordered in two sizes: S/M and L/XL. Adjust sizes with the adjustable clasp (extension piece) between S and M or between L and XL.

  • S/M ranges from 15 to 18.5 cm (5.9 to 7.3 inches)
  • L/XL ranges from 19 to 22 cm (7.5 to 8.7 inches)
How do you know what your size is?

To measure your wrist size you can use a piece of wire and place it over your wrist. Make a full circle and cut off where both ends meet. Now use a tapeline or straightedge to measure the length of the wire. Well done, you know your size!

In general, size Small / Medium (15 to 18.5 cm / 5.9 to 7.3 inches) fits most men and women best.

Please shoot us an email whenever you have questions regarding your size.

Where is it produced?

Invi manufactures her products in the Netherlands. Our interpretations of Dutch design: innovative, robust and powerful.

We collaborate with carefully selected suppliers to ensure the highest quality standards.

What materials are used?

The Invi Bracelet is made from high quality materials like stainless steal and tough Italian leather.

These materials make the Invi Bacelet shockproof and highly robust to sustain year of heavy use.

Can you wear it on an airplane?

It is advised not to carry the bracelet in an airplane cabin. We recommend you to carry the bracelet in an air-sealed plastic bag, in a shock proof place and only in the check-in luggage compartment of the airplane

How about maintenance?

The Invi Bracelet is designed for every day wearing and can be labeled as shock proof. It is advised to avoid dropping and to store at a dry and cool place when not wearing.

The bracelet can respond to environmental influences and dirt from ordinary use can sometimes jam the activation mechanism. By regularly practicing the safety button the mechanism can clean itself. A cleaning tissue can be used to wipe off dirt trapped between the inner parts. If this does not help, silicone spray will do the trick. Spray one drop between the moving parts and underneath the safety button. Now press the safety button and slide both parts over one another. Repeat this a couple of times to to ensure the silicone spray spreads out evenly. 

For bracelets with a leather band it is advised to avoid contact with water. Regular leather care products could be used to maintain the quality.

What are the delivery times?

Free worldwide delivery is included in your order. The Invi Bracelet is wrapped in a box which fits through regular mailbox. We process our order every business day and average shipping times are:

  • 1 to 2 days in the Netherlands
  • 3 to 8 days in Europe
  • 5 to 10 days outside Europe
What about warranty?

The bracelet is warranted against defects in material and manufacturing of the housing for 1 year from the date of purchase. The lifespan of the smell is at least 3 years.

Not covered by warranty: the band, damage or breakage caused by accident or dropping; lack of care; water damage and normal wear and tear.

about the smell

What does it smell like?

The smell is best described as an overwhelming and very disqusting gas-like smell. However, as smell is subjective every person will experience it differently.

How does the smell work?

The foul-smell in the Invi Bracelet evokes a disgust reaction. This is an underestimated but very powerful human emotion as it serves to warn us for danger. For example, the smell of rotten food ensures that you will not eat something that is potentially dangerous for your health.

Next to evoking a ‘flight’ reaction, the foul smell also has a negative effect on sexual arousal.

Is the smell safe to use?

The released dose is not toxic. Additional research shows that exposure to the smell has not led to any adverse health effects.

Nevertheless the smell may cause headaches or dizziness, can cause irritation of the skin, eyes and/or respiratory tract. Prolonged exposure to the smell in spaces less than 50m3 should be avoided. Extra caution is required when people:

  • have respiratory diseases/COPD (e.g. asthma)
  • are hypersensitive (HSP)
  • have skin diseases where the bracelet is worn
  • are highly allergic.
Can you wash it off?

Yes. After activation part of the smell will remain in the capsule keeping contact with skin limited. In case of any skin contact, wash it off with water and soap. Clean contaminated clothes by hand wash or hang them outside. The smell evaporates over time.

 

Will a foul-smell really repel an attacker?

The smell can surprise, demotivate and repel an attacker without using violence. The foul smell evokes a disgust reaction which has a negative effect on sexual arousal. Furthermore, as the smell spreads easily (over 100 meters distance) this can help to alarm others in the surrounding.

Nature provides some powerful examples of the effectiveness of smell as a self-defense mechanism (e.g. the skunk). Also, repellent smells are used by the army for non-violent crowd control purposes.

Every situation is different and as with any other self-defense product, no guarantees can be made.

about invi

What is Invi's mission?

Invi dreams of a world free of sexual violence. In this world everyone feels safe and can move independently.

We contribute to this world by creating impactful solutions and by spreading knowledge and awareness.

With the ambition to make these solutions accessible for all, we unite people globally in the prevention of sexual violence.

What does the name Invi stand for?

Invi builds on the Latin words ‘in’ (inner) and ‘vi’ (strength). Strong people are needed who help build a culture that promotes equality and rejects any form of sexual violence. With its products Invi empowers people and makes them feel stronger.

What is meant with provoke independence?

“Provoke” is an appeal to the world to change the status quo. Strong people are needed to open up the discussion and break the taboo around sexual violence. Invi’s products are designed to empower, to enable safety, freedom and “independence” for all.

Let’s provoke independence together!

How to contact Invi?

Feel free to contact us anytime at hello@invi.world of call us at +31 (0)6 46 14 02 37