DAS LP
The Dynamic Arch Support LP — the DAS slimmed for low-volume shoes, with the deep heel cup and progressive arch rebound retained, built congruent to the foot.
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DAS performance in a low-profile shell.
The DAS LP offers all of the great biomechanical advantages of the A8 DAS, slimmed down and shortened to fit in lower-volume footwear. The same deep heel cup and casting techniques from the standard DAS are retained, so progressive arch rebound and control aren't compromised.
Ideal for low-profile shoes without removable insoles — but it can also be used with removable insoles on top of the sock liner. Built from a positive model of the patient's foot and modifiable at the practitioner's discretion.
Low-volume shoes without removable insoles
Slimmed and shortened to seat in lower-volume footwear — or use it on top of the sock liner where insoles are removable.
Progressive arch rebound & control
The deep heel cup and DAS casting techniques are retained, preserving dynamic arch support and biomechanical control.
Gait training & foot alignment
Built for active-lifestyle patients training the body for efficient biomechanics who are conscious of fit and alignment.
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 dress 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 DAS LP 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 DAS LP 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.
- DAS LP frame fabricated — the semiflexible polypropylene shell is formed to the positive model with a deep 12mm heel cup using the standard DAS casting techniques, preserving progressive arch rebound. A .75mm Protex top cover and .6mm suede bottom cover full wrap 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 DAS LP is set to the individual patient — frame rigidity, rearfoot posting, deep heel cup, and covers are all chosen for that patient's anatomy and weight. Forefoot is balanced to rearfoot and the device is custom congruent to the foot model.
A semiflexible polypropylene shell calibrated per patient weight — slimmed and shortened to fit lower-volume footwear while keeping DAS control.
The same deep heel cup as the standard DAS, pressed from the patient's calcaneus — the key to progressive arch rebound and rearfoot control.
An intrinsic rearfoot post keeps the device low-profile while balancing the forefoot to the rearfoot congruent to the patient's foot.
A clean functional shell with no filler — keeping the device low-profile so it seats correctly in low-volume shoes.
A durable Protex top cover provides a resilient interface underfoot for active-lifestyle wear.
Suede bottom cover full wrap provides a soft interface in the shoe and protects the polypropylene shell.
The full picture.
Everything you need to prescribe the DAS LP.
- Bone deformity
- Foot deformity
- Arthritis
- Musculoskeletal pathology
- Lower extremity pathology
- Poor posture
Recommended for
- Low-volume shoes without removable insoles
- Gait training & foot alignment
- Active-lifestyle patients
The DAS LP offers all of the great biomechanical advantages of the A8 DAS, slimmed down and shortened to fit in lower-volume footwear. The same deep heel cup and casting techniques from the standard DAS are retained, so progressive arch rebound and control aren't compromised.
It's ideal for low-profile shoes without removable insoles, but it can also be used with removable insoles on top of the sock liner. Built with a semiflexible polypropylene frame, an intrinsic rearfoot post, a deep 12mm heel cup, a .75mm Protex top cover, and a .6mm suede bottom cover full wrap.
- 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
The deep heel cup does the work.
The DAS LP pairs a semiflexible polypropylene frame with a deep 12mm heel cup pressed using the standard DAS casting techniques. That deep cup and casting method are what preserve the progressive arch rebound and biomechanical control of the full-size DAS — now in a shell slim enough for low-volume footwear.
An intrinsic rearfoot post keeps the profile low while balancing the forefoot to the rearfoot, and a durable .75mm Protex top cover provides a resilient interface for gait training and active-lifestyle wear.
DAS performance,
low-profile fit.
DAS LP sits on the Dress frame profile — the lowest-volume Root frame,
with the standard DAS deep heel cup for progressive arch rebound.
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