The Cascadia is the flagship high arch cork insole. The fit is exquisite, especially for people with high arches. We should definitely mention the insoles come in full sizes for women and men. No trimming, no fuss. And this is important: your feet are dynamic, they move and flex. That's a good thing. The insoles are designed to provide support under normal load but are oh-so-forgiving when your feet need a nice, soft landing. It's the ideal balance of ergonomic support and plush comfort.