Mens Nike Vaporfly 4 Extreme Whistle included

Whistle included

Elastane 13%

5 layer bio membrane advanced fabric technology designed to repel wet weather and block wind

and flexible enough to move and secure the foot

Mens Nike Vaporfly 4 Extreme Whistle includedSo light that it almost disappears on the feet, just pure race day magic! Nike's best selling road racing shoe, the Vaporfly 4, has been fine tuned to become its lightest version. With precise adjustments to the design, Nike has succeeded in reducing the overall weight while maintaining top performance. Nike strategically constructed ZoomX foam with less midsole stack height to reduce the weight. The carbon Flyplate has been adjusted to a steeper