A guide from Laylax in choosing sizes of their Danner "ATA-MIL" Airsoft Shoes, which is collaboration product... "Introducing how to choose the size and recommendations for Danner and LayLax's collaborative shoes 'ATA-MIL'! We also introduce how to adjust the length of the shoelaces, so please watch until the end. The optimal size varies depending on the shape and preferences of each individual's feet. Please consider this video as a guide to choosing the size."