Energy was just energy until it hit the new Ultraboost 21. Now it comes with even more fantastic return energy, as well as a super combination of weight, resilience and shock absorption.
Briefly about Adidas UltraBoost 21
Part of the PrimeBlue collection
Sock-like fit
Upper in Adidas Primeknit+
Boost midsole
10 mm drop
Continental rubber in the outsole
Favorite surface: Firm
Upper part
The upper part is made with Adidas Primeknit+ material. This material is part of Adidas Primeblue, and is a recycled and high-performance material that is partly made from Parley Ocean Plastic from the world's oceans. In other words, you support a good cause when you buy UltraBoost 21.
The midsole
The UltraBoost 21 is constructed with a Boost midsole, where 6% more Boost capsules mean that you get even more return energy for every step you take.
At the same time, the new Torsion System, which is 15% stiffer in the forefoot, helps to provide more resilience in the heel when you run.