Vaporfly 4 Width:Regular Lining: 90% polyester/10% spandex

Lining: 90% polyester/10% spandex

fitted heel cup eliminates bunching and rubbing for blister protection

with a secure midfoot

Maximum cushioning and dual Air Zoom units deliver an ultrasoft ride

Stacked cushioning

Vaporfly 4 Width:Regular Lining: 90% polyester/10% spandexA light, efficient design feels propulsive for all 26. 2. The Vaporfly 4 is a lean, mean, mile eating machine. We trimmed weight in the midsole, outsole and upper from the Vaporfly 3 without sacrificing performance. The result is a lighter, more propulsive all around racing shoe thats trusted from the mile to the marathon. Product Details: Full Speed The full length carbon fiber Flyplate has a higher angle than the Vaporfly 3 and combines with a lower