McDavid Ankle X Ankle Brace The McDavid™ Ankle X™ is a revolutionary new protective ankle brace that is so comfortable you won’t know you have it on even after a full day of practice. Maximum level of protection and support to treat and guard against ankle injuries. The first revolutionary brace to effectively treat all ankle injuries, including high ankle injuries. Superior Lock Down Cuff (LDC) technology helps restrict excessive rotational and inversion forces that cause ankle injuries. Thermal Responsive Padding System responds to body heat by changing its physical state to mold to the ankle, and one secure Lock Down Strap for quick application and removal. The result: more comfort, more agility, more freedom to perform at the highest level. Sizes: S/M (fits men's shoe size 7-10 and women’s shoe size 6-9), L/XL (fits men's shoe size 10 to 15 and women’s shoe size 9-16) Fits left or right ankle and any style shoe. Sold individually.