Short Description
The Med Spec ASO Ankle Stabilizer (Original) is the leading lace-up ASO Ankle Brace trusted by athletes.
- Patented Figure-Eight Straps: Form a complete figure-eight to mimic athletic taping and provide superior sprain protection and support.
- Ultimate Durability: Constructed with robust Ballistic Nylon for superior strength and long-term use.
- Secure & Low Profile: Features a strong elastic cuff closure to keep laces and straps secure. Its low profile allows it to fit easily into any type of shoe.
- Bilateral Design: Each brace is universally designed to fit the left or right foot. Sold individually.
Choose the best-selling Med Spec ASO for chronic ankle instability or sprain prevention.
Why the Med Spec ASO Ankle Stabilizer is the #1 Choice for Protection
The Med Spec ASO Ankle Stabilizer is the leading lace-up ankle brace used by professional and collegiate athletes, athletic trainers, and orthopedic specialists worldwide. Designed for superior comfort, durability, and protection, the ASO effectively replaces traditional athletic ankle taping while providing long-lasting, adjustable support to correct ankle instability.
Core Technology: Figure-Eight Stabilization
The ASO's defining feature is its patented Figure-Eight Strapping System. These nylon straps are engineered to function exactly like a professional tape job, resisting inversion and eversion (the primary causes of ankle sprains) without restricting normal range of motion during walking or running.
The ASO actively stabilizes the subtalar and talocrural joints to prevent ankle rollover and sprains.
Med Spec ASO Ankle Stabilizer Features & Benefits
- Ballistic Nylon Boot: The main body of the ASO Ankle Brace is constructed from durable, high-strength ballistic nylon for superior longevity and strength, even in high-impact sports.
- Elastic Cuff Closure: A woven elastic cuff enhances the stabilizing strap support and keeps the laces securely fastened during rigorous activity.
- US Manufacturing: The ASO is proudly manufactured by Med Spec in the USA, ensuring higher quality control standards.
- CoolFlex Padding: Features a CoolFlex Achilles Pad and tongue padding (latex-free) for superior comfort along the Achilles tendon and top of the foot.
- Invisible Seam: The boot has a hidden seam to eliminate irritation under the foot, enhancing comfort for all-day wear.
- Low Profile & Bilateral: The low-profile design fits easily inside any type of shoe, and the ASO is bilateral, fitting both the left and right foot.
Recommended Manufacturer HCPC: L1902
Indications
The Med Spec ASO Ankle Stabilizer is indicated for the effective protection, support, and treatment of:- Acute ankle sprains (Mild to Moderate Grade I & II)
- Chronic ankle instability and recurrent ankle sprains
- Subtalar joint instability
- Rehabilitation following an ankle fracture or surgery
- Athletic use for prophylactic (preventive) support in high-risk sports like basketball and volleyball.
Available Versions: Standard vs. With Stays
We offer the original ASO Ankle Stabilizer (standard lace-up) and the ASO with Plastic Stays for maximum, acute protection.
Note: The version with plastic stays includes two removable semi-rigid inserts (one medial, one lateral). These stays provide superior proprioceptive protection and are often recommended during the acute phase of an ankle sprain. They can be removed as the user transitions into rehabilitation or returns to sport.
Cleaning and Care
The ASO is machine washable on a gentle cycle (no bleach); always allow it to air dry completely. Do not machine dry.



