Press release -
Where work performance meets circularity — Solid Gear’s Project Circuit makes the impossible real
After countless hours, late nights, and relentless field testing, Solid Gear has done what the industry said was impossible: created the first recyclable sole unit engineered for work performance. They call it the Circular Performance Chassis™. It’s born out of Project Circuit, the brand’s long-term mission to make performance safety footwear recyclable without compromise.
Time to break the cycle of disposability
Mixed materials and complex assembly have made recycling safety shoes close to impossible, so for decades, millions of safety shoes have followed the same lifecycle — made, worn, and thrown in landfills. Project Circuit breaks that cycle, proving that there are better ways to go about it.
“We didn’t just make a new shoe; we engineered a new system,” says Johan Magnusson, Product Development & Supply Chain Manager at Solid Gear. “It’s something this industry has never seen.”
A sole unit made to change the game
The Circular Performance Chassis™ is built from components molded in C_TPU, Solid Gear’s recyclable performance thermoplastic. It’s a material that can be recycled again and again without losing quality, and tuned for specific properties to give each component a precise function. All components are seamlessly injection molded into a monobloc sole unit without any adhesives.
Components:
CC_Charge — a midsole tuned for explosive rebound and cloudlike cushioning.
CC_Cling — an outsole tuned for superior traction and abrasion resistance.
CC_Core — a shank tuned for torsional stability and controlled flex.
Revo 3 Air Low — where R&D gets to work
The first product to feature the Circular Performance Chassis™ is Revo 3 Air Low — a high-performance safety shoe merging elite running-shoe DNA with uncompromising safety. Developed in Sweden and made in Portugal, it features a BOA® Fit System, MATRYX® upper, and NANO toe cap to combine precision fit, breathability, and safety.
“Revo 3 Air Low is designed like a supercar,” says Richard Parent, Senior Footwear Designer and Product Developer at Solid Gear. “Every part serves a purpose to push the limits of performance.”
When the shoes are done, it’s time for their next shift
When the shoes reach the end of their life, the cycle continues through C_Loop, Solid Gear’s EU-based take-back and recycling system. Users scan a QR code inside the shoes, get a free return label, and mail them back to Solid Gear— or drop them at a certified retailer who handles the return. Each pair is then disassembled at Solid Gear’s hub, the C_TPU recycled, and remolded into new components for new products.
“Every part of Project Circuit was designed for recyclability from day one,” adds Anna Olsson, Sustainability Manager at Solid Gear. “That way we can control the entire recycling process to ensure traceability, material quality, and measurable CO₂ reductions.”
On a mission to take safety footwear into the future
Project Circuit isn’t a one-off launch; it’s a long-term mission to cut emissions, extend material lifecycles, and push the limits of circular design and performance in safety footwear.
In Project Circuit, Solid Gear tracks 16 sustainability indicators aligned with the PEF (Product Environmental Footprint) methodology to ensure full transparency and measurable progress.
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About Solid Gear
Solid Gear is the industry leader in high-performance athletic safety footwear. Founded in 2008 on the idea that safety footwear doesn’t have to be heavy boots, Solid Gear continuously raises the bar through progressive design, premium materials, and the latest technologies. Their products are made to endure, keep workers safe, and enable them to comfortably perform at their peak, no matter the work environment.
Solid Gear — Athlete inspired, Worker approved.
Solid Gear, Hultafors Group AB
Berga Backe 4
182 53 Danderyd
Sweden
info@hultaforsgroup.com
