Cork sandals are sandals that use cork as the main material for the midsole. The midsole of cork sandals is lightweight and spongy, and provides good cushioning while allowing the footbed to mold to the foot overtime.
Flexible refers to the capability to adjust or bend easily. In the case of shoes, flexible refers to a type of shoe that generally features soft uppers and lightweight, bendable outsoles. Flexible footwear is designed to provide exceptional comfort when worn.