The Nike Zoom VaporFly 4% Flyknit “Bright Crimson” is a speedy running shoe that can log serious miles and look great on the street. After originally releasing with a mesh upper, the Zoom VaporFly 4% has been updated with a fully woven Flyknit upper for an even better fit and lightweight feel. Nike claims the shoe can increase a runner’s speed and efficiency by up to 4%. The Zoom VaporFly 4% features a thick ZoomX foam midsole with an internal carbon fiber plate for soft cushioning and a supportive, springy feel. This colorway of the Nike Zoom VaporFly 4% Flyknit features an eye-catching Bright Crimson upper with large grey Swooshes.