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.
The iconic Napapijri jackets with the Norwegian flag can be seen everywhere in the streets, but their look may give you the impression that the brand is from the far North. Don’t let it fool you, Napapijri is a premium brand with roots in Italy. The brand's identity is based on the idea of constantly expanding your horizons and discovering unexplored distances. By the way, be sure not to miss the collaboration of Napapijiri and London's designer Martine Rose called NAPA.