US
Zamst

Zamst A2-DX Sports Ankle Brace

  • Right ankle, Medium, side specific fit
  • Grade III high ankle sprains and chronic instability
  • Dual X-strap support, anterior, lateral and medial
  • Rigid side guards limit inversion and eversion
  • Rear application for putting on and adjusting
  • Nylon build, black
  • 5.44 oz listed weight

Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A rigid, guard-equipped ankle brace for athletes returning from severe high ankle sprains or living with chronic instability. It is side specific, so a right brace will not work on a left ankle.

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ASIN: B0090PZQ7SModel: A2-DXCategory: Ankle Braces

Overview

Zamst builds the A2-DX around rigid side guards and crossing straps that stabilize the ankle in several directions. The brace goes on from the back of the leg, then the straps are drawn tight to set support around the joint.

Protection for court and field sports after a serious sprain is the case for this brace, with guards that resist rolling inward and outward. Bulk inside a shoe, washing instructions and a sizing chart are not covered in the listing, and each brace fits only one side.

Who it's for

Court and field athletes with a history of rolled ankles or a high ankle injury get rigid support designed to allow natural movement. People after mild everyday support, or who need the other side, should look elsewhere.

Pros and cons

Pros
  • Rigid guards resist inversion and eversion
  • Crossing straps support three directions
  • Side specific anatomical fit
  • Rear entry eases application
Cons
  • Right ankle only in this listing
  • Care instructions not listed
  • Returns only if unused with box
  • Rigid build is more than mild sprains need

Performance notes

Stability comes from the rigid side guards blocking the inward and outward roll, while the crossing straps hold the front, outer and inner ankle. Fit is the deciding factor: the side specific shape and the strap tension set how well the guards stay aligned. An internal grip feature is meant to stop the ankle from sliding inside the brace during cuts and jumps.

Specifications

BrandZamst
ModelA2-DX
Dimensions & fit
Item Weight0.34 pounds
SizeMedium - Right
Item Dimensions10.2 × 5.3 × 3 inches
Capacity & performance
Age Range DescriptionAdult
Construction & materials
MaterialNylon
ColorBlack
Included components
Unit Count1
Included ComponentsCrossbody Bag
Warranty & support
Warranty Description• The product must be in new condition (unused). • Please return with the original box (undamaged) along with the instruction manuals.
Other details
Closure TypeClasp
Target Use Body PartAnkle
Sport TypeBasketball, Football, Hockey, Tennis, Volleyball
Number Of Items1
Part Number470602
Specific Uses For ProductSprain
Special FeaturesEco-Friendly, Flexible, Lightweight

Frequently asked questions

How do I adjust the Zamst A2-DX once it is on?

It is applied from the rear, which the listing says enables easy application and adjustment, and the X-straps set the tension. Washing instructions are not given in the listing.

Can the Zamst A2-DX right brace be worn on the left ankle?

No. It uses a left and right specific design, and this listing is the right ankle in size Medium.

Can I return a Zamst A2-DX if it does not fit?

The listed terms require the brace to be unused and returned in the undamaged original box with the instruction manuals.