Hmm interesting product, not entirely sure about it myself so thought I'd do a review to learn a little more about it.

Pros:

1. The overall design will go with a large majority of different outfits and overall looks like a normal bracket.
2. They offer multiple different sizes of the bracelet.
3. During beta testing, they found that it made people feel more secure.
4. During beta testing, they found that participants felt less need for weapons.
5. They offer free shipping (or insured if you're worried about if it will come or not).

Cons:

Even though I mentioned that it should go with a large selection of different attire, they should have really made a large selection of different colours as brown might not be suitable for everything (being a little picky here, but overall day to day this will simply be a normal bracelet so it should really have the same benefits as normal bracelet would have, and usually is a fashion accessory).

I personally think it's a little expensive at €59.95 even though it's marketed as a "security" device I don't believe that this particular product would save you in the event your attacker had enough motivation. The smell would pass after a short period of time depending on your location and overall they haven't actually proved it key benefit, all they've really proved is that this it provides intrinsic value to its wearer through making them feel safer, which of course is good but I'm not too sure myself. As you can see below:

"During the pilot period, none of the participants found themselves in a situation that required activation of the Invi Bracelet."

Personally, I don't like the fact it has been marketed as a security device and it hasn't ever been proved.

Overall, I think it could provide some benefit in some scenarios, but I don't think it could be considered as a dependable security device. Hopefully, it's not something I will be provided right about.

Note: I can also see that a few women have commented on this post and can see its benefits, and as I might not be the target market I can see how my view may be skewed, so if you disagree with me I'd be interested to hear some more opinions :)