ASO Ankle Brace


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ASO Ankle Brace

The ASO Ankle Brace is one of the most popular ankle supports with coaches, trainers and physical therapists.

The contoured tongue provides exceptional fit and is constructed of light-weight yet durable Cool Flex material.

This material also lines the inside back of the boot, providing increased comfort to the Achilles area. The polyester-cotton laces are strong and resist shrinking.

  • Elastic cuff closure: decreases amount of inversion possible
  • Ballistic nylon straps: "figure 8" straps replicate ankle taping
  • Low profile: will fit in any type of shoe
  • Each ankle brace is sold separately
  • Lace up closure: patient friendly application
  • Bilateral capability: helps keep foot in neutral position
  • Great choice for preventing or treating ankle sprains
  • Ballistic nylon base: provides tremendous strength to product; increase longevity of brace
  • US manufacturing: higher quality control standards
  • Available in black or white
  • In Stock for immediate shipment
  • Machine wash gentle cycle, no bleach
  • Air dry


The ASO Ankle Brace is indicated for moderate to severe sprains. For immobilization following other ankle/foot injuries.


  • ASO ankle braces provide moderate stability
  • ASO ankle braces prevent sprains/strains
  • ASO ankle braces decrease anti-inflammatory medications
  • ASO ankle braces decrease pain symptoms
  • ASO ankle braces improve joint function
  • ASO ankle braces maintain ankle joint flexibility

Support Level

This brace is rated Level III

ASO Ankle Stabilizing Orthosis
Click here for Rating Information

Sizing Chart

(2 ways to measure for correct size)

ASO Sizing Chart -- Fitting by shoe size
Men 6-7 7 1/2 - 9 9 1/2 - 11 11 1/2 - 13 13 1/2 - 15 15+
Narrow xxs xs s m l xl
Regular xs s m l xl xxl
Wide s m l xl xxl xxl
Women 5-6 6 1/2 - 8 8 1/2 - 10 10 1/2 - 12 12 1/2 - 14
Narrow xxs xs s m l
Regular xs s m m l
Wide s m l l xl

Active Ankle Brace Sizing Chart

Additional Info

ASO Ankle Stabilizing Orthosis What is a High Ankle Sprain?

An ankle injury common to athletes is the high ankle sprain.

The technical term for this type of injury is referred to as an ankle syndesmosis injury, because it involves the ligaments that connect the bottom ends of the tibia and fibula bones.

ASO Ankle Stabilizing Orthosis


Shirley, on 12-13-2016

product looked good but my wife was not happy with the fit on her so we returned it'

George, on 12-13-2016
Great brace

I play tennis and was concerned about rolling my ankle. I saw that a lot of tennis players were wearing it. It was extremely comfortable to play in and I feel much more secure- Great pricing!

Anne Rollo, on 12-13-2016
My Reliable Friend The Brace Shop

My Reliable Friend The Brace... I have been wearing an ASO Ankle Orthosis for 12 years. The days I wear it I have NO pain in my ankle. The days I dont i have unbearable pain 24/7. I am a believer and decided I wanted to look fashionable for summer hense the order of my white brace. Thanks so much for a great product. I am enjoying life again.

Mark, on 12-13-2016
Had lots of ankle sprains

Had lots of ankle sprains etc. over 55 years, this brace keeps me in the game. Wish only that they would figure out how to loose the seam that runs under the heel. Nevertheless, I'm buying my second (wore the first one out after 5 years)

Healther M, on 12-13-2016
fabulous- I broke my ankle

fabulous- I broke my ankle 2 years ago and it was invaluable then. I now have OCD in that same ankle it totally keeps me walking for miles at a time without pain A+++++

Cmoore, on 12-13-2016
I tore all my ligaments

I tore all my ligaments in my ankle. And after I wore this brace my ankle hasn't got hurt again. I LOVE IT!

Kelvin, on 12-13-2016
Fantastic PURCHASE!

Fantastic PURCHASE! 6 Weeks into my broken ankle I found my best friend! So Good I'll Buy a ANOTHER ONE! HIGHLY RECOMMENDED!

Shelly Embody, on 12-13-2016
I suffer from drop foot

I suffer from drop foot. I'm unable to wear the brace designed for drop foot. This brace is awesome. It supports my ankle and I am able to walk with little or not limping and absolutely NO dropping of my foot! I love this brace and love the Brace Shop!! It's literally changed my life!

Greg Murray, on 12-13-2016
Just a quick note to thank you

Just a quick note to thank you for the prompt service. The braces arrived last week and have already made appearances on the basketball and netball courts.

Kevin, on 12-13-2016
Great product

Great product, much better than any other brace on the market, as I've tried many. While taping is still better (for soccer at least), this is so much more convenient!

Chris Reaper, on 12-13-2016
Love these braces

Love these braces. I have used them for 4 or 5 years now with no ankle injuries!

J Jeffreys, on 12-13-2016
Unclear as to reinforcement

Unclear as to reinforcement position and strap placement

Bret, on 12-13-2016
Great support for my daughter

Great support for my daughter ankle injury she loves it and gives great support for a very active kid

Mandy, on 12-13-2016
Comfy & mimics taping

Comfy & mimics taping the ankle, but works better & is 10x easier to use than tape. I'm about to order my second one for the other bum ankle...

Dirk, on 12-13-2016
I tried both, Medspec

I tried both, Medspec ASO and AirCast AirSports. AirSports works quite well but IMO the MedSpec brace is even better!

Kathy, on 12-13-2016
This is a great product

This is a great product!!!! Had air-cast before, this by far the best

Baskets All Day, on 12-13-2016
great,...never play

great,...never play without them

Balla247, on 12-13-2016
best brace i ever had

best brace i ever had gives great support

Scrappymomma, on 12-13-2016
good brace

very much needed my other one was totally worn out.

Dihof3, on 12-13-2016
Excellent vaule

My physician's office was out of the XS brace that I needed. Since I hadn't met my deductible for the year, I was going to pay $67. Since they had to order it anyhow, I went online to see if I could find the exact same product and was pleasantly surprised to find it at less than half the cost. It's exactly what my physician's office was going to provide and arrived in less than a week........even during the Christmas rush.

Sarge, on 12-13-2016
Great Braces

This are the best braces around. Work like a charm

Wade, on 12-13-2016
Excellent Ankle Support

Broke ankle about 20 years ago, has 3 screws and is now getting arthritic. Doctor suggested fusing the ankle joint. Instead using this brace and steroid shots every 6 months, for two years, I have been able to go to the gym and do a 1 hour strenuous spinning (bicycling) class, walk 1.25 miles and weight lift. I take it on/off for support as needed support throughout the day. This brace has allowed me to stay active. Easy to care for, just hand wash and let it air dry.. Good product.

Soccer Mom, on 12-13-2016
Love Them

My daughter has rolled her ankle one to many times playing soccer where she would be looking at surgery if she rolled her ankle again. This product has saved her and her ankles. She does not play any sport or take gym class without them.

Rob, on 12-13-2016
Great for Volleyball

Works great to keep me from rolling my ankles.

Bc, on 12-13-2016

A most severe ankle sprain and this allowed me to be mobile without crutches in over a month. Won't get rid of this one. :)

Serina, on 12-13-2016
Great Brace

I can see the difference in my 10-year old son's walk. My son who has severe flat feet, knocked-kneed, ankle leaning out of his tennis shoes feels a lot better wearing the ankle brace. He wants to sleep in them. He will be using these braces for a very long time. Great Stabilization!

Brian, on 12-13-2016
excellent customer service

Suffered multiple fractures of ankle and heel. Needed extra stability following surgery. This brace did the trick! Excellent customer service from, delivered when promised and at fair price. Thanks! :-)

Elderstin, on 12-13-2016
Good brace

So far it has worked well for me.

Bball, on 12-13-2016
Good Brace

This is a good brace....comes in a variety of sizes too.....fits my 6th grade daughter.

Markd, on 12-13-2016

Sprained my right ankle "BAD" 3 weeks ago. Bought this brace and was able to play without fear of re-spraining. Should have purchased it many years ago--Would have saved myself a lot of pain and less down time. Also it is VERY comfortable to play in!

Walking Slow, on 12-13-2016
Excellent Support

I purchsed the ASO for ankle & foot support while walking. I have a foot drop and very weak ankle. The ASO gives me more confidence in my steps and has improve my gate, and allows me to walk further without fatigue. With less fatigue, I can keep up with my walking partner. Would recommend to anyone needing better support, a very comfortable brace to wear as long as needed, easy on & off.

Liz, on 12-13-2016
Best ankle wrap I've used

I have a rare bone disease that causes the destruction of my joints. I am also short in stature, so this makes it quite difficult in finding an ankle brace that actually fits me correctly. When I look at pediatric ankle wraps, they generally tend to be the type that need to be pulled up over the foot. I can't use these as my elbows are also affected and yanking something up in that manner is painful. This wrap is the best I've come across. It fits me correctly, first of all, which makes it much more comfortable as well as fits a shoe better. Secondly, this wrap gives support without becoming painful after extended wear. I am very pleased with this ankle wrap and will purchase one again.

Gloria, on 12-13-2016

I LOVE this brace! I ruptured my main ankle ligament after a really bad ankle sprain. I cannot point my toes down as it tears the ligament again, so have to be careful when playing soccer or sports that might subject my food to flex down. Most of the ankle braces out there only support the ankle from lateral flexion. This brace is very support laterally as well as moving my foot up and down!! It really doesn't take that much time to put it on. Although it is not the simplest version of ankle braces out there.. It is worth the extra time putting it on.

Joe, on 12-13-2016
Great for Over Pronation

I have had collapsing ankles all of my life and finally decided to get some supports that I could where basically everywhere. I ordered these a few days ago and they arrived today. Very pleased. It feels like I am walking on clouds! All of my life I felt like I was walking on flat tires. They are easy to put on, and fit nicely into my sneakers. Very pleased.

Katy, on 12-13-2016
Better than most others

I thought I was getting the same brace of yours that 'd gotten from an orthopedic doc several years ago. This one requires tying the laces to tighten the brace, whereas my old one had Velcro straps which held the brace firm. I preferred the Velcro design, which seems to offer greater support.

Mia, on 12-13-2016
Larger than expected

Ordered these for my daughter who wears a size 9. Initially ordered a medium and returned for a small. Apparently they run larger than expected because the small is still too big and is uncomfortable when she pivots. I'll keep them so when her feet grow she'll have them, but will have to find a different pair.

Aloha, on 12-13-2016
Feel great!

I purchased two braces at the same time and I'm super happy I did. The price was terrific. I have used them for whole entire days and my ankles feel well supported and 'right'. They fit in fairly easily in my shoes. It does take a bit to put them on and the only improvement I would like to see is some modification so that I can get them on easier and quicker if at all possible.

Tendon, on 12-13-2016
I Can Walk Again

After a plate with 9 screws and 2 other screws and 6 months of healing, I was excitedly looking forward to resuming normal activities. Whoops - not so soon. An inflamed/unstable tendon on the non-injured side was screaming, 'not yet'. An lace-up ankle brace was suggested so I began my search by calling a niece who lettered in 3 high school sports and has started on her collage basketball team from her freshman to junior year (A10 Player of the week this season). She's had ankle issues over the years so I inquired about treatment from her coaches/trainers. She sent a picture of what she wears - ASO Ankle Brace. I placed my order and am basically pain free as I continue to heal. Fantastic result for a 69 year old.

Enid Mccartney, on 12-13-2016
ASO Ankle Brace

Very happy with these braces, My daughters wear them when playing Netball. They have had ankle injuries and these braces give them all the support they need to keep playing. They are a well wearing brace and last a long time. Only disappointment was that they were advertised with free shipping over $49 but as they were being shipped to Australia this did not apply. Not good advertising. Even with this postage, they were cheaper than buying in stores.

Eddie Of Maryland, on 12-13-2016
Does the Trick!!!

I had a weakened ankle from playing lots of baseball over the years. It kept getting twisted and re-injured anytime I did anything that was a little strenuous. Ever since buying this brace and wearing it my ankle is healing and feels much better. I feel more confident in all of my activities.

Gordon, on 12-13-2016
Good product, but soak/boil first

These are great, I run on rocky trails all the time. But boil them or soak them in very hot water first to drive out the residual plasticisers. I had very bad dermatitis (a bit like poison ivy) until my doctor figured it out. No problems after that, this is about my fourth pair.

J Wilson, on 12-13-2016
Great product, amazing customer service

I bought this on the recommendation of a friend who is a physical therapy assistant. It allowed me to enjoy hiking on vacation 1 week after spraining my ankle, and I'm glad to have it for an upcoming backpacking trip. Fits great and gives perfect support and stability. I am really grateful to the customer service rep who made sure that I had it before my flight out of town - highly recommend this company and product!

Maureen, on 12-13-2016
Excellent brace

It provides great support for my over pronation.

Maggie, on 12-13-2016
Great !!

It relieves the ankle pain and supports so well, it has reduced the strain & pain in my knee. Buying another one !!

Solita , on 12-13-2016
Great support

Well made brace and offers great support. I had to find some thicker socks since it was irritating my ankle from the rubbing in one spot, (bony ankles)