The new Flat-less tire for the wheelchair. The Marathon has become the absolute benchmark for puncture-proof pneumatic tires on the wheelchair. Now the all-new version comes again with improved rolling resistance. In addition, the SmartGuard protection belt is made from a proportion of recycled natural rubber. The anti-aging sidewall construction can withstand the typical overloading from insufficient inflation pressure for much longer. Also with the dynamic new profile and new look label.