Explore our foams

Foam is a collective name for the materials used in the midsole of running shoes. There are different types of materials designed to meet different needs, and in recent years there has been a huge development in this area.

The optimal foam is made of a lightweight material that provides high cushioning and high energy return. If you also manage to achieve good durability, you have a perfect foam. All foam manufacturers strive for this. However, there's usually a compromise, with more or less of each property.

In general, racing shoes have a foam that is light and offers high energy return but has low durability. Shoes for volume training usually features a foam that provides good cushioning and high durability but lower energy return and higher weight.

Energy return defines the resilience and "bounciness" of the material, how quickly it returns to its original shape (much like the rebound of a bouncy ball when dropped). High energy return gives a more efficient stride at the expense of durability and is generally best suited for hard road surfaces and racing/intervals.