Don't even try to measure your insole, you´ll never get it right. Just look at the measurements on any of your sneakers in CM or CHN. Then take that information and find the corresponding US size in the size guide. For example, the insole length of 25 CM corresponds to US 7 in Vans. You may get a different US size with a different brand due to slightly different measuring.
How many shoe manufacturers who have such high-quality standards they would rather make their own stuff themselves do you know? This Stockholm-based brand has created a name for itself in the sneaker world. Sometimes it's the minimalistic design and maximum focus on quality that will catch your eye when everyone else is trying to push the limits. What are you really looking for in sneakers? The answer is Eytys.