Ossur Formfit CAM Walking Boot – Short Low Top | Non-Inflated Fracture & Ankle Boot
The Ossur Formfit Short CAM Walking Boot (Non-Inflated) is a lightweight, low-profile controlled ankle motion (CAM) boot designed for ankle fractures, foot injuries, toe fractures, and post-operative rehabilitation. The short low-top design is ideal for forefoot and midfoot conditions where a full-height boot is not required. No air bladder or pump needed. For pneumatic compression, see the Formfit Air Short (with Air).
Short vs. Tall — Which height do I need?
- This boot (Short Low-Top) — Lower profile, better for forefoot injuries, toe fractures, metatarsal fractures, or when less ankle restriction is needed.
- Tall High-Top version — Extends higher above the ankle for greater immobilization. Best for ankle fractures, severe sprains, or Achilles injuries.
Size Chart & Fit Guide
Universal fit — fits left or right foot.
⚠️ Important: These Boots Fit a Size Range — Not a Single Shoe Size
CAM walking boots are designed to accommodate a range of shoe sizes — not a single perfect fit. The extra room allows for bandaging, swelling, post-surgical dressings, and thick socks common during recovery.
- Choose the smaller size if swelling is minimal — snugger fit.
- Choose the larger size if you have significant swelling, thick bandaging, or a cast underneath.
When in doubt, go up a size. Your clinician can help determine the best fit.
Method 1 — Size by Shoe Size
| Size | Men's Shoe Size | Women's Shoe Size | Part Number |
|---|---|---|---|
| X-Small | 3 – 5 | 4 – 6 | W0300BLK |
| Small | 5 – 7 | 6 – 8 | W0500BLK |
| Medium | 7 – 9 | 8 – 10 | W0700BLK |
| Large | 9 – 11 | 10 – 12 | W0900BLK |
| X-Large | 11 – 13 | 12+ | W1100BLK |
📏 Method 2 — Measure Your Foot Length (Most Accurate)
Measuring your actual foot length in inches gives you the most accurate size.
- Place a blank piece of paper on a hard floor.
- Stand on the paper with your heel touching a wall.
- Mark the tip of your longest toe.
- Measure from the heel line to the toe mark in inches.
- Use the table below to find your boot size.
Tip: If you have swelling or a cast sock, add ¼"–½" and size up.
Ossur Formfit — Internal Foot Length by Size
| Size | Foot Length (inches) | Foot Length (cm) | Men's Shoe | Women's Shoe | Part Number |
|---|---|---|---|---|---|
| X-Small | 7.5 – 8.5" | (19.0 – 21.5 cm) | 3 – 5 | 4 – 6 | W0300BLK |
| Small | 8.5 – 9.5" | (21.5 – 24.0 cm) | 5 – 7 | 6 – 8 | W0500BLK |
| Medium | 9.5 – 10.5" | (24.0 – 26.5 cm) | 7 – 9 | 8 – 10 | W0700BLK |
| Large | 10.5 – 11.5" | (26.5 – 29.2 cm) | 9 – 11 | 10 – 12 | W0900BLK |
| X-Large | 11.5 – 13.0" | (29.2 – 33.0 cm) | 11 – 13 | 12+ | W1100BLK |
* Foot length measurements are approximate internal boot dimensions. When your measurement falls at the boundary between two sizes, consider swelling and dressing thickness when choosing.
Clinical Indications (as prescribed)
- Stable ankle and foot fractures
- Metatarsal and toe fractures
- Grade 2 and Grade 3 ankle sprains
- Soft tissue injuries of the foot and ankle
- Post-operative foot and ankle rehabilitation
Features & Benefits
- Short low-top design — lower profile for forefoot and midfoot conditions
- Non-inflated foam liner — comfortable, no pump required
- Rocker bottom outsole — promotes natural gait during ambulation
- Breathable liner — moisture management for extended wear
- Lightweight shell — reduces fatigue during recovery
- Universal fit — fits left or right foot
- Hook-and-loop straps — easy, adjustable closure
HCPCS Code: L4387 | FSA/HSA Eligible
Shipping: Based on your location, ships from NJ or CA warehouse in 2–3 business days.
OrthoTape.com is an authorized Ossur dealer. Authentic product. 6-month manufacturer warranty. This product is intended for use as directed by a licensed healthcare provider.

Browse All CAM Walking Boots
Looking for the Tall/High-Top version, or a boot with pneumatic air support? Browse our full CAM walker boot collection.
Shop CAM Walking Boots View Tall High-Top VersionAuthorized Dealer | 6-Month Manufacturer Warranty | Authentic Product Quality Guaranteed
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