Nike Vaporfly 4 Men Size:11 The Speedgoat 6 GTX is

The Speedgoat 6 GTX is now even more comfortable with GORE-TEX's Invisible Fit waterproof membrane for a lighter

we combined an extra-resilient PEBA-topped midsole and increased rocker profile for an aggressive toe-off

SPEEDROLL technology and PWWRUN PB foam

Mesh Upper: Your shoe is made with premium single-layer TPEE mesh for optimal durability

and added some Vitamin C

Nike Vaporfly 4 Men Size:11 The Speedgoat 6 GTX isUltimate vapor. Maximum fly. The Nike Vaporfly 4 is meticulously designed to be the finest road racing super shoe on the market. Of its equally elite siblings (the Alphafly and Streakfly), the Vaporfly boasts the broadest range by far. It's designed to be best for racing full marathons down to 10Ks, but don't hesitate to lace these stunners up for 5Ks or even 1 mile races and repeats. This is a top to bottom update, so what are the key changes?