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Superelastic Foam for Running Shoes

Infinergy® – Superelastic foam for lightweight running shoes

BASF’s new foam Infinergy® is as elastic as rubber but lighter. It consists of a novel expanded thermoplastic polyurethane, in short E-TPU.

After pretreatment with pressure and heat, researchers at BASF let the individual granules blow up like popcorn. In the process, its volume increases tenfold to produce oval foam beads with tiny, closed gas bubbles inside which make the material very elastic and provide the desired rebound effect. In adidas’ new running shoe Infinergy provides unique spring and cushioning properties. The runner gets an energy return not offered by any other running shoe.

The research behind

This video shows the development of the adidas Boost™ running shoes by BASF. Learn more about how our adidas experts collaborated to realize this innovation in performance sports footwear.  

BASF foam Infinergy revolutionizes adidas running shoes

Die geschlossenen Zellen im expandierten thermoplastischen Polyurethan des neuen BASF Schaumstoff Infinergy® machen Schuhsohlen sehr elastisch und sorgen für eine effektive Dämpfung und Federung während des Laufens. Vergrößerung 100:1 (bei 15 cm Bildbreite) Abdruck honorarfrei. Copyright by BASF. Through its sealed air cells of expanded thermoplastic polyurethane, BASF’s new Infinergy™ foam makes shoe soles very elastic and effectively absorbs shock impact while jogging. Magnification 100:1 (15 cm in width) Print free of charge. Copyright by BASF,Die geschlossenen Zellen im expandierten thermoplastischen Polyurethan des neuen BASF Schaumstoff Infinergy® machen Schuhsohlen sehr elastisch und sorgen für eine effektive Dämpfung und Federung während des Laufens. Vergrößerung 100:1 (bei 15 cm Bildbreite) Abdruck honorarfrei. Copyright by BASF. Through its sealed air cells of expanded thermoplastic polyurethane, BASF’s new Infinergy™ foam makes shoe soles very elastic and effectively absorbs shock impact while jogging. Magnification 100:1 (15 cm in width) Print free of charge. Copyright by BASF