If you are a skier, which of your gear would you consider the most instrumental in your success on the slopes? You might be tempted to say your skis or helmet — but without the right boots, you would probably struggle to steer yourself as you ski.

What exactly would constitute the “right” boots? To put a long story short: those that feel right on your feet, without hugging either too loosely or too tightly. However, as no given person’s feet are identical to anyone else’s, standard…