adidas Ultraboost 21 W

Prototype after prototype. Innovation after innovation. Testing after testing. Meet us in the hot pursuit of the pinnacle harmonization of weight, cushioning, and responsiveness. Ultraboost 21. Say hello to incredible energy return.

SPECIFICATIONS
Sock-like fit
Lace closure
adidas Primeknit+ textile upper
Textile lining
Supportive heel counter
Boost midsole
Weight: 310 g (size UK 8.5)
Midsole drop: 10 mm (heel: 24.2 mm / forefoot: 14.2 mm)
Continental™ Rubber outsole
Primeblue
Product colour: Orchid Tint / Orchid Tint / Violet Tone
Product code: S23837

HIGHLIGHTS
ADIDAS LEP
The new Torsion System provides a 15% increase in forefoot bending stiffness for a more responsive run.
INCREDIBLE ENERGY RETURN
6% more Boost capsules ready to explode with energy in each step.
PRIMEBLUE
This product is made with Primeblue, a high-performance recycled material made in part with Parley Ocean Plastic.