-Braces ankles good.
-Fits right or left foot.
-Laces up for a snug fit.
-Figure "8" nylon straps mimick an athletic trainer's tape job, locking down the heel.
-Ballistic nylon construction means it'll last through the seasons
- Lower profile brace means it fits in most shoes (this means you, soccer cleats!) -Sold individually.

The Med Spec ASO is the Cadillac of ankle braces:
Both are made in the US, offer a great balance of comfort and "sportiness", and are top of the line. While you're much more likely to see a Cadillac park out in front of a shuffleboard court or a restaurant for the early bird special, people that wear this brace also play shuffleboard and eat early dinners. It's just most ASOs are seen on basketball, baseball, lacrosse, and football players looking for unsurpassed ankle support. I could also tell you that Andy Roddick uses this brace when he plays tennis, but I'm not legally allowed to, since he's not on our payroll. I would if I could, though.

To find your size, take the circumference of your ankle; that is, from the middle of your heel up and around to the spot where your foot and leg meet, in inches.
Sizing is as follows:
XXS = 9"-10"
XS = 10"-11"
S = 11"-12"
M = 12"-13"
L = 13"-14"
XL = 14"-15"
XXL = 15"-16"