You move before you think about it
Walking, standing, balancing, changing direction: your body adapts continuously. With every step it gathers information about the ground, your position, and your next movement.
Grass, forest trails, or sand change constantly. Smooth floors and asphalt are more even. What matters isn't just how your foot lands, but also what feedback that creates.
1. Perceive
Foot, shoe, and ground generate sensory information with every contact.
2. Process
Your nervous system continuously processes signals from the foot and body. Muscles and joints fine tune movement to the situation.
3. Adapt
Our goal: better perception through natural muscle activation and relaxation in everyday life. The foot stays free, flexible, active, and gathers more information about its movement with every step.
Support that allows movement and improves sensory clarity
Proprioception
SEQ is built so the foot receives clear sensory feedback while walking. This awareness of contact between foot, insole, and ground is called proprioception. It can help you notice movement more consciously and support a more active, more stable feel underfoot, without locking the foot in place.
SEQ is made from elastic silicone
The patented* mesh structure makes functional zones visible, each tuned to a different moment in movement.
*Patented with the European Patent Office: 3D printed midsole made from an elastic polymer material.
Classic insoles can, depending on the goal, offload, guide, or support. SEQ takes a complementary approach: the flexible structure doesn't lock the foot in place, it delivers targeted impulses during movement.
Silicone structure
Instead of a rigid shell. The flexible silicon mesh density governs the balance of energy return and cushioning: more density for return, less for cushioning.
Functional zones
For different phases of movement.
Sensory feedback
Instead of a purely passive feel. The spring effect creates the sensory activation.
Dynamic geometry
Instead of a rigid shell. Density governs the balance of energy return and cushioning: more density for return, less for cushioning.
For different worlds of movement
Barefoot shoe, comfort shoe, or a professionally fitted solution: the right starting point depends on how you move, which shoe you wear, and what feedback you're looking for.
SEQ Sense
A biomechanically developed insole that supports perception between foot and ground. Flexible structure and targeted material distribution enable differentiated feedback during movement.
SEQ Motion
For anyone who values the freedom of a barefoot shoe and wants a bit more orientation in certain situations. Biomechanically positioned guide rails support awareness of foot position while the foot stays free and active.
SEQ Custom
With a professional assessment, the design and fit can be tailored to measurements, findings, shoe, and personal needs. Only through SEQ certified partners.
Good advice makes movement visible, and SEQ tangible
1. Understand
Discuss daily life, shoes, and context.
2. Measure and learn
Include a current measurement. Understand findings and what they mean.
3. Experience
See, touch, and test SEQ in the shoe. Clarify benefits, limitations, fit, and price.
Based on your movement sequence
SEQ is based on a scientifically validated biomechanical development approach. Together with clinical and scientific partners, movement, pressure distribution, and functional foot loading were analysed. These findings feed directly into the development of SEQ insoles.
Clinical Evaluation of Novel Custom 3D-Printed Meshed-Silicone Orthotics Utilizing Standing Foot Scans and Dynamic Gait Data (2025)
Joshua Kubach , Mario Pasurka, Julia Lueg and Marcel Betsch
University Hospital Erlangen, Department of Trauma Surgery and Orthopaedics, Friedrich-Alexander-University Erlangen-Nuremberg, Krankenhausstr. 12, 91054 Erlangen, Germany
Conclusion
AI-integrated 3D-printed meshed–silicone orthotics demonstrated measurable biomechanical improvements including lower extremity alignment optimization and plantar pressure redistribution. These computational design methodologies combined with advanced manufacturing technologies establish a foundation for personalizedorthotic interventions in clinical biomechanics applications.
Source
The Effects of 3D-Printed Silicone Midsole Design on Gait Biomechanics (2022)
Wieke Philippart
VU University Amsterdam - Department of Human Movement Sciences
Sicco Bus
University of Amsterdam - University Medical Center
Jaap H. van Dieën
VU University Amsterdam - Department of Human Movement Sciences
Abstract
3D-printing allows customization of density and shape of silicon meshed midsoles to optimize the biomechanical interaction with the user. The purpose of this study was to assess the biomechanical effects of such midsoles with varying density and arch support. Two experiments were performed with 12 and 9 young, able-bodied participants, who walked on 6 midsoles with three different densities, with and without arch support. In the first experiment, peak ground reaction forces, initial vertical loading rate, RMS of ankle inversion/eversion, and power absorbed and produced by the ankle-foot complex were assessed in treadmill walking. In the second experiment, peak pressure, contact area and pressure time integral over rearfoot, mid-foot and forefoot were assessed in overground walking. The data were analyzed at group as well as individual level. No group level effects were found in the first experiment. In the second experiment, lower midsole density reduced peak pressure on the rearfoot and forefoot and arch support increased the contact area at the mid-foot, which reduced peak pressures on the mid-foot and the pressure time-integral on the mid- and forefoot. At the individual level, significant effects of midsole design were found, which were however variable between subjects, explaining to the lack of group level effects. In conclusion, midsole density and arch support affected gait biomechanics, but these effects were clearly subject dependent. The results presented support the notion to customize midsoles to fit individual users or group of users and demonstrate the utility of 3D printed meshed midsoles towards this end.
Rediscover your movement with a specialist partner near you.
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Well prepared:
Is SEQ a classic insole?
SEQ takes an active, sensory approach. Whether it's used as a standalone solution or as part of a professional fitting depends on your partner's offering and your needs.
Will SEQ fit my shoes?
Shoe shape, interior volume, size, and your existing insole all matter. Use the size guide, and if you're unsure, have the fit checked.
Is there a break in period?
A different feel underfoot can take some getting used to. Start as recommended by your partner and increase wear time gradually.
Where can I get SEQ, and who fits it?
SEQ is available through selected specialist partners. They select the right variant, fit it, and check how it sits in the shoe. The partner finder shows you who's near you.
Write us a message
Your journey to active movement starts here, and we’re with you every step of the way.
Learned step by step. With every movement.
Address
Sequence Holding ApS
Industrivej 5
6261 Bredebro
Denmark
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