Saucony Endorphin Speed 5 - Black - UK 8.5

The Endorphin Speed 5 is ideal for runners who want a versatile, fast shoe for speed workouts, tempo runs, and race days. It also performs well for longer, moderate training runs, making it a great all-around performance trainer.

PWRRUN PB is Saucony's premium, energy-efficient cushioning foam. It's lightweight, highly responsive, and provides excellent energy return, giving you a lively and springy feel with every stride.

While both plates add propulsion, a nylon plate (like in the Endorphin Speed 5) generally offers more flexibility and a slightly less aggressive, more forgiving ride compared to a stiffer carbon fiber plate. This makes the Speed 5 more versatile for daily training in addition to speed work.

SPEEDROLL Technology is a unique midsole geometry with an elevated cushioning and a stiff forefoot. This creates a continuously smooth, propulsive feeling, driving you forward with less effort and helping you maintain momentum and speed.

While comfortable, the Endorphin Speed 5 is primarily designed as a performance running shoe. Its specialized technologies are optimized for running mechanics. For casual wear, you might find other shoes more suited for everyday comfort and durability over long periods of walking.

The Saucony Endorphin Speed 5 has an 8mm heel-to-toe offset, with a heel stack height of 36mm and a forefoot stack height of 28mm.

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Adjust the lacing system. Experiment with different lacing techniques (e.g., skip an eyelet for pressure relief, or use a runner's knot for a more secure heel lock) to find the most comfortable and secure fit for your foot.

Ensure you are wearing appropriate running socks that wick moisture. Check your shoe size and fit – shoes that are too small or too large can cause rubbing. Break in new shoes gradually. If issues persist, consider professional fit advice.

Running shoes have a lifespan, typically 300-500 miles. Reduced responsiveness often indicates that the cushioning foam (PWRRUN PB) has compressed and lost its rebound properties, signaling it might be time for a new pair. Regularly rotate your running shoes to extend their individual lifespan.

This can sometimes be caused by moisture trapped within the shoe or between the sockliner and the midsole. Remove the sockliner, clean it and the shoe's interior, and ensure everything is thoroughly dry before reinserting. If the sound persists, it could be a manufacturing anomaly.