Ankle support has to solve two problems at once: limit the rolling motion that causes sprains, without locking the joint so rigidly that you can't move. This brace uses an adjustable compression sleeve plus a strap so you set the level yourself — firmer for a return from injury, lighter for prevention during play.
The compression supports the ligaments through lateral movement, which is where ankle injuries actually happen: cutting, landing, planting. The adjustable strap lets you re-tension it mid-session as things loosen up.
Also used for plantar fasciitis, where steady compression through the arch and heel can ease morning pain. Low-profile enough to wear inside a normal shoe without going up a size.