Saucony Endorphin Pro 4 - Black - UK 10

The Endorphin Pro 4 is specifically designed for race days and high-performance training sessions where speed and efficiency are key. For your daily, easy runs, you might find a shoe with more traditional cushioning or less aggressive geometry to be more comfortable.

These shoes are built to support athletes aiming for personal bests across a wide range of distances, from 5K to full marathon, particularly during competitions or demanding speed workouts due to their propulsive nature.

This innovative system combines two distinct foams: PWRRUN PB for its exceptional energy return and PWRRUN HG for its responsive feel. Together, they create a dynamic, propulsive ride that helps maximize your speed and efficiency during fast efforts.

The XT-900 outsole is engineered for high traction and durability on road surfaces. While they might handle very light, well-maintained paths, they are not designed for technical trails or rough, uneven off-road conditions.

The full-length carbon fiber plate provides a rigid, propulsive platform that works in conjunction with the Speedroll technology. It helps create a feeling of effortless forward motion, stabilizes the foot, and enhances energy return, allowing for a more efficient stride at higher speeds.

Saucony generally designs their performance shoes to fit true to size. However, given the secure and race-oriented fit of the Endorphin Pro 4, some runners, especially those with wider feet or who prefer a slightly roomier toe box, might consider trying on a half size up.

Ensure you are using appropriate running socks; sometimes thicker socks can help. Experiment with different lacing techniques, such as a 'heel lock' lacing method, to create a more secure fit around your ankle and midfoot.

The Endorphin Pro 4 is a high-performance shoe with a carbon plate and responsive foams, which naturally provide a firmer, more propulsive ride compared to softer daily trainers. Give them a few faster-paced runs to adapt, ensuring you use them for their intended purpose of speed work or racing to feel the full benefits.

Check your sock height and material; some socks can cause irritation with specific shoe collars. Also, ensure the lacing isn't too tight around the top eyelets. Allow for a break-in period, as the integrated tongue and heel liner are designed for a secure, contoured fit that may take a few runs to fully adapt to your foot.