Nike Alphafly 4 Proto

Take your race-day performance to the next level with the Nike Alphafly 4 men's running shoe. Packed with cutting-edge technology, it pushes the boundaries of performance to help you achieve your fastest times in road races, from the half marathon to the marathon.

Nike Alphafly 4: Who is it for, what is it designed for, and which distances and surfaces is it suitable for?

Designed for runners who compete at speed, it is aimed at experienced to elite male runners looking to unlock their full potential on race day.

Developed for road racing, the shoe delivers its best performance over distances from the half marathon to the marathon, where its efficiency helps you maintain a fast pace over long distances.

Its balance of propulsion, energy return and stability makes it an ideal choice for runners looking to set a new personal best or compete at the highest level.

Nike Air Zoom Alphafly 4: What is it designed for?

+ Designed to maintain a fast pace during competition, the Alphafly 4 is intended for experienced to elite runners with excellent running technique. Built for performance, it delivers its full potential over distances from the half marathon to the marathon. 

- This demanding model requires considerable running experience to get the most out of its performance. It is not suitable for beginner runners or for everyday training.

If you are looking for a high-performance shoe with greater versatility, we recommend the Nike ZoomX Vaporfly Next%, which is suitable for races ranging from short distances to the marathon, from 5K and 10K events to the full marathon.

Why choose the Nike Alphafly 4?

An iconic model in the Nike Running range, the Alphafly 4 builds on the legacy of a shoe that has become a benchmark for road racing. Designed to deliver the highest level of performance, it combines all the features you need to achieve your fastest times:

• Exceptional energy return that turns every footstrike into forward momentum, helping you maintain a fast, consistent pace.
• Soft, responsive and long-lasting cushioning that effectively absorbs impact while delivering excellent bounce.
• A carbon-fibre plate that acts as a powerful propulsion lever, optimising your stride, smoothing transitions and reducing energy loss over long distances.
• A stable, confidence-inspiring platform that improves footstrike control at high speeds.
• A lightweight, breathable and precise fit that comfortably wraps around your foot, enhances lockdown and provides a secure feel.

Alphafly 4: What’s new?

A significant evolution of the Alphafly 3, this fourth generation features several key improvements:

• Redesigned ZoomX foam, 25% lighter, softer and more responsive, enhancing energy return for an even more dynamic ride.
• Redesigned Air Zoom units, 30% lighter, delivering greater bounce, a softer underfoot feel and quieter footstrikes.
• An expanded Flyplate, combined with independently positioned Air Zoom units, to improve stability and provide more consistent footstrikes.
• A redesigned, wider base that improves stride control and delivers greater stability, even at high speeds.
• Additional forefoot cushioning, combined with a curved geometry, to enhance propulsion and create smoother transitions.
• A redesigned upper, 10% lighter, offering improved breathability alongside targeted midfoot reinforcements for a more precise fit and better lockdown.

Technical specifications of the Nike Alphafly 4

• Heel-to-toe drop: 8 mm.
  
  
• Cushioning: The full-length foam, which is lighter, softer and more responsive, delivers maximum energy return to power every stride. Two Air Zoom units in the forefoot provide greater bounce, along with a softer and quieter underfoot feel. A carbon-fibre plate combined with curved geometry optimises propulsion, while additional forefoot cushioning promotes smoother transitions.
  
  
• Upper (the part that wraps around your foot): The lighter upper promotes excellent airflow to help keep your feet feeling fresh throughout your run. Its precise fit comfortably wraps around your foot to provide secure lockdown 

• Outsole: Designed for road racing, it provides reliable grip to help keep your footing secure at high speeds. Combined with a wider platform, it contributes to improved stability and optimal stride control. 

• Non-removable insole
• Storage bag included
• Weight measured by i-Run: 187 g in size EU 42 / UK 8.