Bought these some what skeptical but too the chance given the good review. First ride was disappointing and thought I had bought a dud but realized that I had screwed up. These plugs come with an applicator you need to use. Placing them in your ears with your fingers (which is what I did initially) does not place them in the ear canal properly.
Tried them the following day on a ride of about 4 hours in total and they were great. I was trialing a GPS system also and the benefit of being able to hear the voice over for the GPS and my Phone calls whilst riding, yet have very little wind noise, was exactly what I had hoped for.
4 not 5 stars because I found with my ears the plugs still needed a little lubrication even with the applicator by way of a tiny bit of saliva. Other than that I have recommended these to others and do so now.