- Seamless Primeknit upper for a snug, sock-like fit that stretches and moves with your foot for a truly one-to-one fit
- Four-way stretch heel and external butterfly heel counter work together to wrap the Achilles, lightly holding your foot in place over the footbed without restricting your natural movement
- Full-length boost midsole cushioning is ultra light and ultra responsive, absorbing the force of impact and returning that energy at toe-off, propelling you to a faster, more comfortable run
- TORSION SYSTEM adds lightweight stability, encouraging a smooth, more natural transition from heelstrike to toe-off
- 10mm offset
- StretchWeb outsole construction adapts to your unique footstrike, allowing the boost midsole particles to freely expand and contract with the natural movement of your foot