Ski
A functional device for recreational skiing - narrow finishing and a semi-shallow heel cup for low-volume ski boots, built congruent to the foot to improve energy transfer from foot to ski edge.
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Built for the boot - control, energy transfer, and warmth.
The Ski device is designed to improve functional control of the foot and ankle for greater ski control. It is ideal for recreational skiers who ski 5 to 20 days a year, and works with stock, Zipfit, or Intuition liners - replacing the boot's stock footbed.
The intimate custom contour improves energy transfer from foot to ski edge - increasing responsiveness and control, built congruent to the skier's own foot model, not an average.
Low-volume boots and narrow boot boards
A semi-shallow heel cup and narrow finishing let the device seat correctly in low-volume ski boots with typically narrow boot boards.
Alignment through the kinetic chain
Maintaining the arch in a neutral position aligns the ankles and hips - more efficient body movement and comfort in typically uncompromising ski boots.
Cold, painful feet & biomechanical pathology
Functional correction for skiers managing moderate to advanced pathology, with a Myolite extension and Prolite cover underfoot.
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 sport 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 Ski device 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 Ski 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.
- Ski frame fabricated - the polypropylene shell is vacuum formed over the positive model and finished narrow for low-volume boots. A 55–65 Shore A EVA rearfoot post, Myolite extension, and Prolite top cover are applied, 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 Ski device 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 boot volume. Forefoot is balanced to rearfoot and the device is custom congruent to the foot model.
A functional polypropylene shell, custom congruent to the foot model - the rigidity that transfers foot movement into ski edge.
An EVA rearfoot post stabilizes the rearfoot in the clinician's prescribed position while absorbing the vibration of a hard piste.
Pressed from the patient's calcaneus, the semi-shallow heel cup controls inversion and eversion while fitting a narrow boot board.
A clean functional shell with no filler - keeping the device low-profile so it seats correctly inside a low-volume boot.
Narrow finishing lets the device drop into low-volume ski boots with typically narrow boot boards, without crowding the liner.
A heel-to-toe Myolite extension adds shock absorption and insulation across the full length of the device.
Proprietary Prolite padded top cover - moisture control, warmth, and cushioning underfoot through a full day on the mountain.
Suede bottom cover protects the polypropylene shell and seats cleanly on the boot board.
The full picture.
Everything you need to prescribe the Ski device.
- Cold and painful feet while skiing
- Biomechanical pathology
Recommended for
- Intermediate to advanced skiers
- Use with stock, Zipfit, or Intuition liners
- Skiers with moderate to advanced pathology
- Performance enhancement
The Ski device is specifically designed to improve the functional control of the foot and ankle for greater ski control. It is ideal for recreational skiers who ski 5 to 20 days a year. The intimate custom contour improves energy transfer from the foot to the ski edge, increasing responsiveness and control.
Maintaining the arch in a neutral position also aligns the ankles and hips, resulting in more efficient body movement and comfort in typically uncompromising ski boots. A semi-shallow heel cup and narrow finishing allow the device to fit into low-volume ski boots with typically narrow boot boards.
Constructed 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
Designed for edge control and alignment.
The Ski device pairs a functional polypropylene shell with a 55–65 Shore A EVA rearfoot post - delivering functional correction and rearfoot stability while staying low-profile enough for a ski boot. A 6mm semi-shallow heel cup controls inversion and eversion of the calcaneus and keeps the foot seated over the boot board.
A heel-to-toe Myolite extension and a proprietary Prolite top cover add shock absorption, insulation, and cushioning - so the device stays comfortable through a full day on the mountain while holding the alignment that drives the edge.
The right frame
for the boot.
The Ski device sits on the Performance frame profile - a low-profile, narrow-finished fit
that drops into ski boots without crowding the liner.
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