Saucony Endorphin Pro 4 - Green - UK 4.5

The Endorphin Pro 4 is primarily designed for speed-focused training sessions, tempo runs, and race days due to its advanced propulsion and lightweight nature. While they can be incorporated into some training, many runners prefer a more cushioned and less aggressive daily trainer for slower, higher-mileage runs to maximize the lifespan of their Pro 4s for performance-critical runs.

Speedroll Technology is an always-forward geometry in the midsole that creates a lively, rolling sensation underfoot. It promotes a quicker transition from landing to toe-off, helping you run faster with less perceived effort by efficiently propelling you forward through your stride.

The integrated carbon fibre plate provides rigidity and acts like a lever, offering dynamic footfall and optimal propulsion. This technology helps maximize your speed by returning energy with each stride and reducing metabolic fatigue over longer distances, allowing for more efficient running.

The Endorphin Pro 4 is engineered to perfectly hug a woman’s foot for secure support. It is generally considered a neutral running shoe, suitable for runners with neutral pronation or those who use personal orthotics to manage their pronation.

It is generally recommended to stick to your usual running shoe size. However, trying them on is always the best approach. Ensure there is about a thumb's width of space between your longest toe and the end of the shoe, and that the fit is snug but comfortable around the midfoot, without any pinching or slipping.

While technically possible, the Endorphin Pro 4 is highly optimized for running performance. Its stiff carbon plate and responsive cushioning are not designed for the biomechanics of walking or the prolonged comfort expected from casual wear shoes. Using them for non-running activities may reduce their effective lifespan for their intended high-performance running purpose.

PWRRUN HG and PWRRUN PB are both advanced, highly responsive foam technologies developed by Saucony. PWRRUN HG is known for delivering Saucony's highest energy return, providing an extremely snappy feel. PWRRUN PB offers exceptional cushioning paired with significant responsiveness. Fusing both in the Endorphin Pro 4 creates a balanced midsole that delivers both potent propulsion and smooth, efficient cushioning for a dynamic ride.

Ensure you are wearing appropriate moisture-wicking running socks, as cotton socks can trap heat. The shoe's breathable upper is designed for ventilation, but proper sock choice is key. Also, consider if your lacing is too tight, restricting air circulation.

The carbon plate is engineered for propulsion and stiffness, which is a hallmark of high-performance racing shoes. It may take a few runs to adapt to this unique feel. Start with shorter, faster runs to get accustomed to the shoe's ride before using it for longer distances or races. Ensure your running form is aligned with a more forward-leaning posture to fully utilize the `Speedroll` technology.

Running shoes have a finite lifespan, and high-performance models like the Endorphin Pro 4 are no exception. The advanced foams (PWRRUN HG, PWRRUN PB) and carbon plate can degrade over time and mileage. Monitor your running mileage; high-performance shoes are generally recommended for replacement every 300-500 miles, depending on individual usage, running style, and body weight. Consistent care, as outlined above, can help maintain their performance longer.