Cork & Leather
A moldable leather frame with a cork arch filler — semi-rigid support that conforms to the foot like human tissue, built congruent for abnormal foot shapes and extra-depth footwear.
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Built to mold to the foot and accommodate deformity.
The Cork & Leather pairs a leather frame with a cork arch filler for patients who need an orthotic that molds well to the foot while providing support. The leather frame is thick enough for semi-rigid support, yet its similarity to human tissue offers more comfort and shock absorption than a polymer frame.
Highly moldable. A leather frame behaves like human tissue — conforming to abnormal foot shapes while a cork arch filler supports, built congruent to the patient's own foot model, not an average.
Hiking & walking boots with removable insoles
A wide device best suited to extra-depth footwear — hiking boots, walking shoes, or work boots with removable insoles.
Rigid & flexible deformities
Accommodates abnormal foot shapes including hammertoes, Charcot foot, clubfoot, and Charcot-Marie-Tooth disease.
Moldable comfort with support
The leather frame molds to the foot like human tissue for comfort and shock absorption, while remaining thick enough for semi-rigid support.
Functional correction, congruent to the foot.
Built from a positive model of the patient's foot and modifiable at the clinician's discretion — scanned and ordered through FootID Pro.
Shape is everything.
What separates Root from generic insoles is the precise morphological shape captured from the patient's foot — held in the exact clinical position the clinician chose. No averaging. No guesswork.
The Cork & Leather is built from a positive model of the patient's foot and can be modified at the practitioner's discretion. This means every device fits the patient it was made for — not an approximation.
Modern Root
Width adjusted considering both borders. Default for all Root models.
Traditional Root
Justified to the lateral border. Used for specific clinical indications at practitioner discretion.
Modern Root shape process
- Forefoot balanced to rearfoot — forefoot-to-rearfoot relationship is optimised as the first step in shape modification.
- Fat pad expanded ~3mm — ensures the device fills the calcaneal contour precisely for the patient's heel.
- Arch lowered ~3mm — creates optimal heel-to-arch-to-met-head geometry. Not applied to foam impressions.
- Width tuned to both borders — medial and lateral widths considered together, giving a foundation that matches the patient's actual foot width.
*Subtalar joint neutral is found by palpating the talus head against the navicular. The neutral position can present many joint-on-joint and bone-on-bone relationships and varies from person to person. An everted or inverted calcaneus may be a neutral position for an individual person. Biomechanical evaluation required.
How you hold the foot is what we build.
Root is not just the orthotic — it's the clinician's positioning, captured and preserved in the device. After scanning, FootID Pro asks the questions no other lab asks.
After every scan, we need to know:
- Was the subtalar joint held in neutral?
- Was the midtarsal joint maximally pronated — loading the 5th metatarsal head?
- Was the midtarsal joint maximally supinated — loading the 1st metatarsal head?
- Was the forefoot brought perpendicular to the rearfoot?
- Was a forefoot-to-rearfoot balance bisection achieved at 90° relative to the calcaneal bisection?
The positioning of those 19 joints in the foot is what gives us the shape.
CAD/CAM fabrication
- Scan or cast captured — clinician captures foot morphology via FootID Pro, holding the subtalar joint in the chosen clinical position.
- Shape modification applied — forefoot balanced to rearfoot, fat pad expanded, arch adjusted using Root's design process.
- Technical staff review — every device reviewed against Traditional Root, Modern Root, Blake Inverted, or Accommodative principles.
- Fabricated to the shape — the polypropylene frame and EVA post are fabricated to match the submitted shape precisely.
See how the scan becomes an order.
Watch Kevin capture a foot, confirm the clinical position, and send a Root order — start to finish.
Variation converted to anatomy-match accuracy by impression & fabrication method
How closely each method preserves the patient’s intended foot shape. Scale: 0–100%, where 100% = optimal congruence.
Plaster bandage is wrapped around the foot in the clinician’s prescribed corrected position, setting into a precise negative of the foot’s contour.
The foot is pressed into a crushable foam box, leaving a negative impression of the plantar surface.
An existing positive model from the patient’s previous orthotics is reused — KevinRoot accepts models from any lab, with frame-contour variance as low as 1%.
A digital scanner such as FootID Pro captures the foot surface as a 3D model.
A fiberglass casting sock is applied over the foot and cures to capture its contour.
Pedobarography captures the patient’s plantar pressure distribution (static or dynamic) at 1:1 scale — used with arch height and shoe size to select a redimold positive model, not to capture true 3D contour.
A direct-molding system using prefabricated, size- and arch-based positive models (33 in total) rather than an individual foot impression.
Heated material is vacuum-pressed over a plaster positive model, drawing it intimately into every contour.
The frame is 3D printed by selective laser sintering (SLS) directly from the CAD-designed digital frame.
A positive model is CNC-milled (CAD/CAM) from an STS, 3D scan, plaster, or foam impression, then the frame is vacuum formed over it.
A CNC machine subtractively mills the frame from a block of polypropylene or EVA per the digital design.
*Redimold has no physical or digital foot impression — patient-foot-to-cast congruent accuracy is unavailable. Variation from positive model to frame is low.
How your patient's foot shape becomes a precision frame.
The journey from clinical capture to finished Cork & Leather frame is where Root's expertise lives. Every step preserves the shape and position the clinician chose for that patient.
- Foot impression captured — the clinician captures the foot using their preferred method. How the foot is held directly determines the congruency of the finished device.
- Positive model created — the impression becomes a physical plaster model or a digital CAD/CAM model. Digital models are stored indefinitely for future pairs.
- Root technicians modify the shape — every modification reviewed against the prescription. Rearfoot post, heel cup depth, and cover selection confirmed per patient.
- Cork & Leather frame fabricated — the 8.9oz leather frame is formed over the positive model. A cork arch filler and 1mm glove-leather top cover are applied with an intrinsic rearfoot post, forefoot balanced to rearfoot.
FitFoot360 Foot Model
- Root digital model stored indefinitely → recalled for future pairs
- Root technicians modify the digital shape in real-time: arch, heel, width, postings
- Vacuum formed over CAD/CAM positive model, direct milled or 3D printed Root Frame — replicable, consistent, precise
Real-time control over shape, function, and fit.
FitFoot360 gives Root's technicians complete digital control over every dimension of the orthotic frame — in real time. What once required physical carving and guesswork is now precise, repeatable, and stored permanently for every patient.
Digital positive model
Stored indefinitely. Future pairs, replacements, or modifications can be fabricated from the exact same shape without a new impression.
Real-time shape modification
Root technicians control arch, heel, width, and postings directly in the software.
Every parameter visible
Heel cup depth, frame reinforcement, ray cut-outs, flanges, and more are set per patient, not per template.
Plaster and foam digitisation
Physical models can be digitised for permanent storage. Note: digitising may not perfectly replicate the intimate contours achieved when vacuum forming directly over plaster.
Built to their spec. Built for their foot.
Every parameter of the Cork & Leather is set to the individual patient — frame rigidity, rearfoot posting, heel cup depth, and covers are all chosen for that patient's anatomy, weight, and activity demands. Forefoot is balanced to rearfoot and the device is custom congruent to the foot model.
A thick leather frame provides semi-rigid support while behaving like human tissue — molding to the foot for comfort and shock absorption beyond a polymer frame.
A cork arch filler reinforces the leather frame and supports the arch — naturally moldable and resilient underfoot.
An intrinsic rearfoot post is built into the frame itself — low-profile stability without adding bulk beneath the heel.
Pressed directly from the patient's calcaneus, the heel cup fits their heel precisely — controlling their specific degree of inversion and eversion.
A soft 1mm glove-leather top cover finishes the device with a smooth, breathable surface against the foot.
No forefoot extension — the device is arch-length, keeping it low-profile for extra-depth footwear.
No bottom cover — the leather frame seats directly in the shoe, ideal for extra-depth hiking, walking, and work boots.
The full picture.
Everything you need to prescribe the Cork & Leather.
- Lower extremity pathology
- Poor posture
- Abnormal foot shape deformities
- Hammertoes
- Charcot foot (neuropathic arthropathy)
- Clubfoot & Charcot-Marie-Tooth disease
Recommended for
- Hiking and walking boots with removable insoles
- Rigid and flexible deformities
- Extra-depth footwear
The Cork & Leather pairs a leather frame with a cork arch filler for patients needing an orthotic that molds well to the foot while providing support. The leather frame is thick enough for semi-rigid support, yet its similarity to human tissue offers more comfort and shock absorption than a polymer frame.
Its high moldability makes it ideal for abnormal foot shape deformities — hammertoes, Charcot foot from neuropathic arthropathy, clubfoot, and Charcot-Marie-Tooth disease. This wide device is best suited to extra-depth shoes such as hiking boots, walking shoes, or work boots with removable insoles. Built from a positive model of the patient's foot and modifiable at the practitioner's discretion.
- L3000 (UCB)
- L3010 (longitudinal/metatarsal support)
- L3020 (arch support)
- L5000 (filler)
Based on configuration. For reference only. Final coding and billing are the provider's responsibility.
Delivery Time
- Standard: 2 weeks
- Expedited: Available on request
Semi-rigid support that molds like human tissue.
The Cork & Leather pairs a thick 8.9oz leather frame with a cork arch filler and an intrinsic rearfoot post — providing semi-rigid support that molds to the foot rather than bracing against it. The 12mm heel cup controls inversion and eversion of the calcaneus, stabilizing the foot at the subtalar joint through the gait cycle.
Because leather behaves like human tissue, the device delivers more comfort and shock absorption than a polymer frame — while its high moldability accommodates abnormal foot shapes and rigid or flexible deformities.
The right frame
for moldable fit.
Cork & Leather sits on the Performance frame profile — a wide, moldable leather platform built
to accommodate deformity in extra-depth hiking, walking, and work boots.
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