Adjustable strap shoes are shoes that are secured to the foot using some type of fastening device that can be customized to the wearer's foot. Types of adjustable straps include hook and loop fasteners or buckles.
About Flexible:
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.