The insole is so thin and curls towards the curve of the shoe that the glue is not good when walking.
I don't like this product, the insole peels from the inside out and twists before it heals. Glue doesn't work! Every time I walk the insole moves backwards, terrible design.
Pros
Looked as shown in online quality
Cons
I had to throw it away after 1 hike in wet and muddy terrain. It couldn't stand even an hour of walking.