Daicel-Evonik material offers sprinters “explosiveness”

14/10/2014
Japanese-based resin product joint-venture Daicel-Evonik has provided sports footwear brand ASICS with its Daiamid polyamide 12 elastomer for use in the sole of its Spike athletic shoe.

It absorbs energy when a runner’s stride deforms it, but the material is firm yet flexible enough to release much of this energy back to the wearer. “The combination of rigidity and flexibility this creates gives the shoe the explosiveness a sprinter needs at the starting block,” said senior researcher Hiroaki Arita, at the time of the announcement. 

In addition, soles made from Daiamid shoes can be designed with features that save even more weight, Daicel-Evonik said, such as soles that do not cover the entire surface.