EVERUN Explained
In brief: EVERUN was Saucony's TPU-based cushioning technology, the foam that came before the current PWRRUN family. Built from thermoplastic polyurethane, it delivered consistent cushioning and strong energy return, and it stayed stable in hot and cold conditions where EVA changes. EVERUN proved expanded TPU could beat EVA on bounce and durability, laying the groundwork for Saucony's present-day performance foams.
What is EVERUN?
EVERUN was Saucony's TPU-based cushioning technology, the foam that preceded the brand's current PWRRUN family. Rather than the ethylene-vinyl acetate used in most midsoles of its era, EVERUN was built from thermoplastic polyurethane, a more resilient material that returns energy more consistently. Saucony used it to deliver a lively, durable ride that held its feel mile after mile. It marked an important turning point for the brand, moving its running line away from conventional EVA towards the kind of high-rebound foam that now defines premium performance footwear. Although it has since been superseded, EVERUN remains a significant chapter in Saucony's cushioning story.
How EVERUN cushioning worked
EVERUN used expanded thermoplastic polyurethane, a foam made of countless resilient cells that compress under load and spring back quickly. That rebound is what runners feel as energy return, the sense that the shoe gives a little back with each push-off rather than simply absorbing the landing. Because TPU is tougher than EVA, EVERUN held onto that bounce over a longer lifespan, resisting the gradual flattening that affects standard foams. Saucony placed it in key areas of the midsole to maximise consistency underfoot, aiming for a ride that felt the same on the first mile of a shoe's life as it did much later.
Temperature stability and durability
One of EVERUN's standout traits was its stability across temperatures. EVA can stiffen in the cold and soften in the heat, subtly changing how a shoe rides depending on the weather. EVERUN's TPU construction largely sidestepped that problem, maintaining its cushioning feel in both warm and cold conditions. Paired with its resistance to compression set, this made for a dependable, repeatable ride that did not drift with the seasons or fade quickly with mileage. For runners who wanted a consistent platform they could trust through year-round training, that reliability was a genuine advantage over the EVA foams it replaced.
EVERUN's place in Saucony history
EVERUN's real significance is what it started. As Saucony's first major TPU foam, it proved that expanded TPU could beat EVA on both energy return and durability, validating a direction the whole industry would follow. The lessons learned fed directly into the PWRRUN platform that came after it, including PWRRUN, PWRRUN+, the PEBA-based PWRRUN PB, and the high-performance PWRRUN HG. In that sense EVERUN was less a dead end and more a proof of concept, the technology that gave Saucony the confidence and the know-how to build the responsive foams found in its current line-up.
What replaced EVERUN
If you are shopping today, you will find PWRRUN rather than EVERUN in current Saucony models. PWRRUN serves as the versatile everyday foam, PWRRUN+ adds a softer, more cushioned feel, PWRRUN PB brings PEBA-based energy return for race day, and PWRRUN HG sits towards the top of the range. Each builds on the principles EVERUN established. If you owned an EVERUN-equipped Saucony and loved its consistency, the modern PWRRUN family is the natural next step, with the same focus on durable, temperature-stable cushioning plus newer materials that push energy return further.
EVERUN at OD's Designer Clothing
EVERUN has been replaced by the PWRRUN foam family in current Saucony running shoes, and that is what you will find in our range at OD's Designer Clothing. We stock Saucony performance footwear alongside other leading running brands, and our team can explain how today's PWRRUN, PWRRUN+, PWRRUN PB and PWRRUN HG foams build on the EVERUN foundation. Shop online with next-day delivery and free click and collect, or come into our St Helens store to try current Saucony models on and feel the cushioning for yourself. See our PWRRUN entries for the latest Saucony foam technologies.