With technology that transforms to comfort, the adidas® Running Ultraboost 21 has an innovative new Torsion System that provides a 15% increase in forefoot bending stiffness for a more responsive run.
- This product is made with Primeblue, a high-performance recycled material made in part with Parley Ocean Plastic.
- 6% more Boost capsules ready to explode with energy in each step.
- Sock-like fit.
- adidas Primeknit+ upper.
- Supportive heel counter.
- Stretchweb outsole with Continental™ Rubber.
- Textile and synthetic upper.
- Man-made lining, insole and outsole.
- Weight of footwear is based on a single item, not a pair.