Spiez Lab
THE TECHNOLOGY
OF "BUILT"
Every technology in SPIEZ began the same way — with a problem no existing solution could solve. Developed, tested, and refined until the result was undeniable.
WUNDER
GRIP™
Proprietary multi-directional traction. Tested where certifications stop — on the surfaces where people actually work.
Kitchen floors fail every existing slip standard by design — covered in oil emulsions, not water. Standard certifications test with water. We tested with what's actually there.
Wunder Grip™ began as a proprietary compound and tread geometry developed specifically for oleic-acid contaminated surfaces. The result performed at levels no off-the-shelf outsole could match. That was the beginning of our own standard.
Tested on ceramic tile, polished steel, wet concrete, and oily kitchen surfaces — the four conditions existing certifications don't combine.
The rubber compound is tuned at the molecular level to maximise friction coefficient across both polar and non-polar liquid contamination.
Grip performance validated to maintain above 85% effectiveness through a minimum of 1,500 hours of active wear — tested on a mechanical abrasion rig.
SHIELDX™
Composite protection system. Lighter than steel. Non-conductive. Engineered as a single architecture, not a collection of parts.
Steel toes pass every impact test. They also conduct electricity, add 180g of dead weight, and trigger airport security. The standard solution solved the wrong problem.
ShieldX™ uses a carbon-composite lattice structure derived from aerospace applications. The same geometry used to absorb crash forces in aircraft components — applied to where your foot meets a falling object.
The carbon composite lattice geometry originates in aircraft fuselage design — where weight-to-strength ratio under impact is a matter of life and safety.
Carbon composite passes through X-ray detection without triggering metal alerts. The only safety-rated work shoe designed for professionals who travel.
Toe box, midsole plate, and heel counter are engineered as a unified load-distribution structure — not independently sourced and assembled.
BERNCORE™
Adaptive midsole cushioning inspired by the Aare River's hydraulic equilibrium. Never too soft. Never too hard. The same response at hour ten as at hour one.
The Aare River maintains consistent hydraulic pressure across variable terrain through distributed energy absorption. That principle — not a foam formulation — became the design brief.
Most midsoles degrade in stiffness after 4–6 hours of continuous load. BernCore™ uses a zone-density architecture that distributes compression across the full footbed — preventing the localized fatigue that causes pain after long shifts.
Three distinct density zones — heel, arch, and forefoot — each tuned to the pressure distribution and motion type most common in professional work environments.
Performance tested in 12-hour continuous load simulations — not the 1-hour industry standard. Because real shifts don't end at hour one.
Independent testing shows 34% reduction in lower limb fatigue markers at hour eight compared to standard EVA midsole construction in comparable footwear.
ARC-H™
SUPPORT
Biomechanically engineered arch and heel support system. Distributes plantar load across the full footbed. Reduces fatigue at the source — not after it happens.
Plantar fasciitis, heel pain, and arch collapse account for over 40% of occupational foot injuries. Most insoles address symptoms. ARC-H™ addresses the mechanics that cause them.
Derived from orthopedic load-mapping data across 12 professional environments, ARC-H™ is a dual-density arch bridge and heel cup system built directly into the shoe's construction — not added after the fact as a removable insert.
ARC-H™ geometry was derived from pressure-mapping data collected across 12 professional environments — healthcare, construction, food service — to reflect real-world plantar load distribution, not lab averages.
ARC-H™ is not a removable insole. The arch bridge and heel cup are built into the midsole's structural layer — providing consistent support that cannot compress, shift, or be accidentally removed.
Two distinct zones — a firmer arch bridge for lateral stability and a softer heel cup for impact absorption — work together as a single biomechanical system rather than competing for compliance.
NOT CERTIFIED
BECAUSE WE
HAD TO.
Safety certifications aren't a checkbox at SPIEZ. They're the minimum the people wearing our shoes have the right to expect. Dual certified — American and European standards both.
Impact resistance, compression protection, metatarsal guard. The full North American occupational footwear standard.
The EU's highest occupational footwear classification. Required on construction sites across 27 countries.
Highest slip resistance classification — ceramic tile with SLS solution and steel floor with glycerol.
Tested to prevent electrostatic buildup — critical in electronics manufacturing and explosive environments.
BUILT FOR THE
ONES WHO BUILD.
Every technology. Both certifications. Built for the shift, not the shelf.
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