arch support

American  

noun

1. a rigid support placed inside a shoe so that its molded form fits the arch of the foot and relieves strain on the muscles of the foot while walking, standing, etc.

---

Etymology

Origin of arch support

First recorded in 1935–40

Example Sentences

"It's all about the arch support," the 39-year-old physician's assistant said.

From BBC

Mine are black leather, soft bottoms with absolutely zero arch support.

From Los Angeles Times

But to soften the blows, her first requirement is arch support, especially because she has flat feet.

From Washington Post

Insoles can also be added for additional arch support.

From New York Times

If your feet roll inwards, you might want stability or motion control shoes for more arch support.

From The Verge