insole

American  

[in-sohl] / ˈɪnˌsoʊl /

noun

1. the inner sole of a shoe or boot.

2. a thickness of material laid as an inner sole within a shoe, especially for comfort.

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insole British  

/ ˈɪnˌsəʊl /

noun

1. the inner sole of a shoe or boot

2. a loose additional inner sole used to give extra warmth, comfort, etc

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Etymology

Origin of insole

First recorded in 1850–55; in + sole ²

Example Sentences

Featuring a western-inspired silhouette with belted accents and a wide insole for maximum comfort, the calf-length Santiago Boots are no exception.

From Los Angeles Times

Amira has a doctor's note that allows her to wear padded soft trainers with gel insoles at school.

From BBC

Instead, Carse changed to a narrower boot, got new insoles and cut a different hole into his footwear.

From BBC

Comfortable shoes and socks are a must, and gel insoles can be a nice treat when you’re logging miles crisscrossing the field.

From Los Angeles Times

The pain eased after she started wearing orthopedic insoles.

From Los Angeles Times