Tandem Sports Ultra Ankle Ultra 360 Ankle Brace Description: The Ultra 360 locks your ankle in place while the figure-8 straps provide 360º of ankle support to help prevent excessive ankle rolling. The multi-adjustable design allows you to customize your level of support. Individuals who require mild ankle support and have a minimal history of ankle injuries. Recommended: Low-top sneakers that have a traditional tongue and laces where you can loosen the laces enough to fit the brace in the shoe. Sizing for this product is based on: Circumference of Ankle Bone in inches