The height insoles are invisable only you and your partner know you wear these to make you look taller, They do slide forward.
These foot insoles are really not only to make you look taller. These will make you about 3/4 inches taller but what I also like is that they are very comfortable. These Height increase shoe insole have one big negative point. Because they are only about a little longer then half of the shoe these foot insoles slide after a while forward. This gets really annoying after a while so I am considering putting double sided tape under the insoles to see if this will help prevent them from sliding. Do not expect these to make you look a lot taller but you will see a slight in height. I actually like that because nobody really notice that I am wearing these. These are made of some kind of hard white foam. The foam is soft enough to be comfortable but also stiff enough so you do not loose any of the height increase. I am actually surprised how much I like these.  The only problem I really have with these insoles is that they slide forward. That is why I can not give them a five star rating. Maybe the manufacturer can consider putting self adhesive on the bottoms to prevent them from sliding. Some insoles from other brands do this and that does prevent any slippage,. I received this product for a discount/ free for my honest/ unbiased opinion. I read reviews before I buy a product online especially on Amazon. I would have given these Height Increase shoe insoles the same Rating or Review without a discount. I hope this review will help you decide if this is a product for you. I would recommend this product to my friends or family who want to look a little taller. This is my own honest review. If this review is helpful for you please vote Yes.
Rating: 4 stars