Endorphin Speed 5

The Saucony Endorphin Speed 5 continues its reign as the definitive super trainer—light, quick, and versatile enough to handle both recovery mileage and sharpened speed sessions with equal confidence. A re-tuned PWRRUN PB midsole delivers its signature springy cushioning with a sleeker sculpt that trims weight and enhances turnover, while the nylon propulsion plate provides pop without sacrificing comfort or flexibility. The result is a smooth, responsive stride that feels fast when you need it, forgiving when you don’t, and unmistakably efficient across the full spectrum of training paces.

Underfoot, XT-900 carbon rubber ensures durable traction and added heel coverage, paired with full-length flex grooves for adaptive movement and a naturally fluid roll. Inside, the SRS sockliner adds step-in plushness, while a supportive 3D heel counter maintains secure alignment as fatigue sets in. Up top, the single-layer engineered hex mesh keeps things breathable, streamlined, and race-lean for daily use. Durable, lively, and purpose-built, the Endorphin Speed 5 is the rare trainer that excels every day without ever feeling ordinary.

MIDSOLE

• PWRRUN PB is PEBA superfoam that's been tuned and sculpted to be responsive and reduce weight further.
• Nylon plate is strategically placed to add stability and pop. It's redesigned without a lateral wing for more torsional flexibility in the midfoot, while the medial wing helps your foot feel more secure and stable.
• Super Responsive Sockliner (SRS) adds a thin layer of molded supercritical cushioning.
• SPEEDROLL technology is geometry designed for easy forward momentum enabling you to run quicker, not harder.

OUTSOLE

• XT-900 rubber offers exceptional traction and durability without compromising weight.

UPPER

• Engineered hexagon mesh creates a single layer of material for breathability and comfort.