CIRCLE SPORTSWEAR / SUPERNATURAL RUNNER
Circle Sportswear SuperNatural Runner is the first running shoe made from 75% bio-based materials, highlighting the brand’s commitment to run towards a better future, designed with circularity in mind. Once the shoes are worn out, they can be returned in the original box for responsible disassembly. The SuperNatural Runner was created to be a functional running shoe that minimises virgin petroleum use and microplastic shedding and considers the product’s 360° life cycle. Four years of work went into building a European supply chain to bring this vision to life, pushing innovation while reducing environmental impact.
The shoe features a ProWeave™ upper, Woolmark® certified, made from a blend of 50% RSW wool and 50% TENCEL™ Lyocell filament. These natural materials are lightweight, thermoregulating, breathable and durable, making the shoe ideal for both performance and comfort. The midsole is made with PLNT-FOAM™, containing 45% bio-based content from castor beans, providing optimal cushioning and energy return. The midsole utilises SuperCritical foaming technology for a high rebound, low-weight ratio that offers best-in-class impact protection and running efficiency, and the cleaner process avoids harmful chemicals, requires less energy and time and creates a highly recyclable material. The outsole is made from 70% bio-based rubber. The lining is made from RWS-certified Merino wool woven in Italy, that is naturally odour-resistant. Compact³ Knitting Technology ensures high thermoregulation compared to synthetic fibres. The internal foam is made from fully biodegradable natural rubber, and reinforcements are crafted from plant fibres. The foxing and eyelets are made from Mirum® - a flexible, non-woven, abrasion-resistant material made from natural rubber, plant oils, natural pigments and responsibly sourced minerals. The laces and labels are crafted from GOTS-certified organic cotton, and the insole features natural foamed rubber, plant fibres, and a Merino wool lining.
COMPOSITION
Upper: 50% Woolmark® certified wool and 50% wood-based Tencel™ Luxe. Insole: natural biodegradable fibres, foamed natural rubber, and Merino wool lining. PLNT-FOAM™ midsole: Pebax® Rnew®, 45% castor bean-based. Outsole: 70% bio-based rubber. Eyestay, foxing, toe bumper & heel counter: Mirum®. Lining: RWS-certified Merino wool. Laces and labels: GOTS-certified organic cotton. Internal reinforcements: flax, cotton etc. Internal componets: foam padding made of natural latex rubber. Strobbel: cotton. Manufactured in Portugal