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ENERGY WAS JUST ENERGY UNTIL ENERGY MET ULTRABOOST 21.
Prototype after prototype. Innovation after innovation. Testing after testing. Meet us in the hot pursuit of the pinnacle harmonization of weight, cushioning, and responsiveness. Ultraboost 21. Say hello to incredible energy return.
The new Torsion System provides a 15% increase in forefoot bending stiffness for a more responsive run.
INCREDIBLE ENERGY RETURN
6% more Boost capsules ready to explode with energy in each step.
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