Medical CAM Cast Boot

Medical CAM Walker Boots (Fracture Boot / Walking Boot / “Cast Boot”)

A medical CAM walking boot (Controlled Ankle Movement) is a removable orthopedic boot used to immobilize and protect the foot and ankle during recovery. Patients (and even clinics) may call these a walking boot, fracture boot, orthopedic boot, medical boot, or even a cast boot. If you’re searching for a broken foot boot or broken ankle boot, you’re usually looking for this category.

Cast boot vs CAM walking boot (what most people mean)

“Cast boot” can mean two different things: (1) a protective shoe worn over a hard cast, or (2) a removable walking boot used instead of a cast. If you need immobilization and a removable brace for a fracture/sprain/post-op recovery, you typically want a CAM walking boot.

Boot height: Short (low-top) vs Tall (high-top)

Short / low-top CAM boots are commonly used for foot injuries where ankle control isn’t the main concern. Tall / high-top CAM boots add more ankle stabilization and are commonly used for ankle injuries and Achilles protocols.

Air vs non-air boots

Air (pneumatic) walking boots use inflatable air bladders to help fine-tune fit and compression when swelling fluctuates. Non-air (non-pneumatic) boots rely on foam padding—lighter and simpler when swelling is minimal or stable.

Products in this collection (what we stock here)

• Non-air (non-pneumatic): Ossur Formfit (short & tall), DeRoyal Tracker EX, DeRoyal Pacesetter II
• Air (pneumatic): Ossur Formfit Air (short & tall), Ossur Rebound Air (short & tall)
• Accessory: Ossur Rebound Achilles Wedge Kit (for Achilles rehab protocols when prescribed)

FAQ

Can the boot fit either foot? Most CAM walking boots are designed to fit either the right or left foot (check each listing for details).

What should I wear under my walking boot? A tall, breathable, moisture-wicking sock helps reduce friction and keeps skin drier.

Can I sleep in my walking boot? Follow your clinician’s instructions—some injuries require it at night, others do not.

Why does my medical walking boot feel “too big” even though I ordered my shoe size? Walking boots (CAM/cast/fracture boots) are intentionally sized in shoe-size ranges, not like a precise shoe fit. They’re designed to accommodate swelling and the extra volume of socks, bandages, or dressings, so it’s normal for the fit to feel roomier than a sneaker. If you’re at the low end of the range (e.g., women’s 6 in a 6–8 boot), you’ll typically have more extra space than someone who is a true size 8. To improve fit, make sure your heel is seated fully back, then snug the liner and straps evenly; if it’s an air/pneumatic boot, use the air bladders to take up volume. If you’re between sizes, have a narrow foot, and swelling is minimal, the smaller size may feel more secure—if you have swelling, thick socks, or dressings, the larger size is often more comfortable.