Saucony Endorphin Pro 4 - White - UK 8.5

The Endorphin Pro 4 is best suited for competitive runners for races of all distances, from 5K to marathon, and for key speed-focused training sessions like tempo runs and interval training. It's designed to help you achieve your personal bests.

While it can be used for some faster daily training runs, the Endorphin Pro 4 is primarily a performance racing shoe. Its aggressive design and focus on propulsion mean it might not be the most comfortable or durable option for every single daily run. Consider using a dedicated daily trainer for your easy miles to extend the life of your Pro 4s.

The full-length carbon fiber plate in the Endorphin Pro 4 acts as a stiffening element within the midsole. It reduces energy loss from foot flexion, helps to stabilize the foot, and works with the Speedroll geometry to create a lever effect, providing an energetic forward push with each stride.

Speedroll Technology is Saucony's signature geometry featuring an elevated cushioning and a stiff forefoot. It creates a propulsive, rocker-like sensation underfoot, designed to make you feel like you're rolling forward effortlessly, promoting a faster cadence and efficient stride.

The Saucony Endorphin Pro 4 has an 8mm heel-to-toe drop and weighs approximately 212g (men's UK 8.5).

To clean, gently wipe the upper with a damp cloth and a small amount of mild soap. Avoid submerging them in water or using a washing machine. Allow them to air dry naturally, away from direct heat.

PWRRUN HG is Saucony's highest energy return foam, providing an exceptionally lively and responsive feel. PWRRUN PB is a lighter, more cushioned, and still highly energetic foam. The combination in the Endorphin Pro 4 delivers a balance of plush impact absorption and explosive propulsion.

The 39.5mm stack height is substantial and can feel different initially. Allow for an adaptation period, focusing on your running form. Incorporate core strengthening exercises, and gradually increase your mileage in these shoes. Ensure proper lacing for a secure midfoot lockdown.

While featuring PWRRUN PB for softness, the PWRRUN HG and the carbon plate are designed for responsiveness and propulsion, not ultimate plushness. The ride will feel firm and fast. If you're coming from a maximalist daily trainer, the difference in feel is intended for speed. Ensure you're running at a pace that activates the shoe's inherent propulsion.

Check your sock choice; a good quality, moisture-wicking running sock can prevent friction. Re-evaluate your lacing technique to ensure a snug fit without being too tight, especially around the toe box. The knit and mesh upper should adapt over a few runs, but persistent issues might indicate an incorrect size or fit.

The propulsive effect of Speedroll and the carbon plate is most noticeable at faster paces. Ensure you are running at your race or tempo pace to fully engage these technologies. Also, ensure your running form is efficient, landing midfoot to forefoot, which best utilizes the rocker geometry.