insole

noun

in·​sole ˈin-ˌsōl 

1

: an inside sole of a shoe

2

: a loose thin strip placed inside a shoe for warmth or comfort

Examples of insole in a Sentence

Recent Examples on the Web

Inside, a memory foam insole with arch support cushions every step, and the soft faux leather molds to your ideal fit over time. — Nicol Natale, PEOPLE, 30 June 2026

Give your favorite shoes a comfort upgrade with Aetrex orthotic insoles. — ABC News, 27 June 2026

The triple-layer sole has enough flexibility and support that your feet aren’t begging for a break halfway through the day, and the suede-like insole is ridiculously soft. — Rosie Marder, Travel + Leisure, 4 July 2026

This detail—along with the slim design that slips seamlessly into low-profile shoes without looking clunky—makes the insoles ideal for wearing with sockless footwear, such as ballet flats or loafers. — Irene Richardson, InStyle, 5 July 2026

Word History

First Known Use

circa 1861, in the meaning defined at sense 1

Rhymes for insole

• insula
• peninsula

Kids Definition

insole

noun

in·​sole ˈin-ˌsōl 

1

: an inside sole of a shoe

2

: a loose thin strip placed inside a shoe for warmth or comfort