Most designs feature a solid reinforced rubber outer surface supported by layers of flexible engineered materials. The Goodyear airless tire concept uses a polyurethane shell reinforced with high-tensile Kevlar cords. Michelin's Uptis prototype relies on a mix of polymers, composites and structural supports that allow it to flex like a standard pneumatic tire. Both designs aim to prov... https://www.coherentmarketinsights.com/industry-reports/airless-tires-market