Shock-absorbing sneaker soles are likely made of polyurethane, a highly elastic and tough polymer. The ability of these elastomers to absorb impact without breaking is extremely important for practical applications. While multiple strategies exist for enhancing elastomer toughness, each has its...
Source: [Phys.org](https://phys.org/news/2026-06-polymer-network-reconfigures-sequence-elastomers.html)