Nike Vaporfly 4 - Green - Trainers - UK 5

The 'Ekiden' variant typically refers to a special edition inspired by the Japanese Ekiden marathon relay race, often featuring unique colorways or design elements.

While they can be used for some speed workouts, the Vaporfly 4 is primarily optimized for racing. For high-mileage daily training, a more durable shoe might be preferable.

The carbon fiber plate helps to stabilize the foot and promote a forward propulsion, improving running economy and potentially leading to faster times.

Refer to Nike's official sizing chart for running shoes and measure your foot length. This specific model is a UK 5.

No, machine washing is not recommended as it can damage the advanced materials. Hand-clean with a damp cloth and mild soap if necessary.

For racing, they are typically used for a limited number of events or miles to maintain peak performance. For training, expect significantly less lifespan compared to standard trainers.

Ensure laces are adjusted appropriately for comfort. The 'Ekiden' variant is designed for a close fit. If discomfort persists, consider alternative lacing techniques or insoles for minor adjustments.

The outsole is designed for optimal performance on dry to moderately wet road surfaces. Exercise caution on highly wet or slippery conditions. Ensure the outsole is clean for best traction.

This is expected with high-performance racing shoes, especially with aggressive toe-off. For extended training, consider rotating with a more durable training shoe.