I am an Aline user for several years now first as a runner and than as a cyclist. The last purchase I made was the blue version targeted to cyclists. I tend to get very tight calf's and now ride 5000+ miles per year. For cycling I needed to replace them every 3-4 years. I may need to replace more due to the extra miles I put on now. I currently purchased the green ones as the blue model is no longer made. After speaking to a support rep. I was told they are are the same even though the green model appear to be marketed to Golfers. I know it is time for a new pair when the calf tightness gets worse even with stretching and Ibuprofen. After the new pair, big improvement. Thank You Aline!