Adidas Adizero Adios Pro 5 Review: Tech Specs, the PEBA/ATPU Lightstrike Pro

On 22 September 2026 Adidas unveiled the Adizero Adios Pro 5 – a race day super shoe harnessing Evo 3 DNA.

The marathon racing world has a new heavyweight contender. Adidas has officially unveiled the Adizero Adios Pro 5, a cutting-edge “super shoe” engineered with structural DNA inherited directly from the record-breaking Adios Pro Evo 3 platform. If you are looking for an ultra-lightweight, high-performance racing weapon to shatter your personal bests, this release marks a massive evolutionary leap for the Adizero franchise.

Rather than delivering a minor cosmetic update, Adidas has fundamentally overhauled its racing architecture: retiring the internal carbon EnergyRods, pivoting away from pure TPEE foam chemistry, dropping the heel-to-toe offset, and shaving weight down to an unbelievable 177 grams.

Part I: Key Performance Specs & Engineered Upgrades

• Massive Weight Reduction (177g): Clocking in at a stunning 177 grams in UK size 8.5 (US 9), the Adios Pro 5 is roughly 23 grams lighter than the Adios Pro 4. In a 42.195 km race where an athlete takes approximately 25,000 to 30,000 strides, this 12% weight drop drastically improves rotational pendulum swing and leg economy in the final 10 kilometers.
  
• The EnergyRim Overhaul: Adidas has officially retired its signature internal carbon-fiber EnergyRods 2.0. In their place sits the EnergyRim—a carbon-infused perimeter frame that cradles the outer edges of the shoe. By moving the structural rigidity to the periphery, an uninterrupted, monolithic block of foam sits directly beneath the footbed, driving a measured 9% increase in energy return.
  
• Aggressive 4mm Geometry: Dropping from the traditional 6mm offset to a lower 4mm drop (39mm heel / 35mm forefoot), the Pro 5 packs significant foam volume directly under the metatarsals. This flatter, thicker forefoot platform is specifically sculpted to cushion high-velocity forefoot strikes.
  
• Lightlock 2.0 Upper & Lighttraxion Outsole: The newly developed woven mesh upper integrates internal tensor support bands to prevent fabric stretch under lateral loads. Underneath, a minimal Lighttraxion rubber pattern is bonded with genuine Continental™ Rubber on high-wear forefoot strike zones for uncompromising wet-weather cornering grip.
  

Part II: Mechanical Analysis via SEGASU Running – The Great Foam Pivot

When it comes to deep-dive mechanical teardowns, prominent footwear analyst SEGASU Running provides crucial insights into how the Adios Pro 5 actually behaves under load, especially when stacked against its primary adversary: the Nike Alphafly 4.

As SEGASU notes, this composite PEBA + ATPU architecture closely mirrors the engineering methodology Asics introduced in its original Metaspeed Sky and Edge series. By sandwiching the carbon EnergyRim between a hyper-reactive top layer and a firm guiding base, Adidas achieves plush compliance without structural collapse.

Part III: Head-to-Head: Adizero Adios Pro 5 vs. Nike Alphafly 4

SEGASU Running’s technical comparisons uncover stark mechanical differences in how the Adios Pro 5 and the Nike Alphafly 4 handle foot-strike dynamics and ground transitions:

Part IV: Biomechanical Verdict

Ultimately, the Adidas Adizero Adios Pro 5 emerges as the noticeably lighter marathon racer (~177g vs. Nike’s estimated ~198g in equivalent US Men’s 9). By filling in the midfoot gap and stabilizing its PEBA top layer with an ATPU structural carrier and the EnergyRim, Adidas has engineered a rolling, highly cushioned platform that accommodates a wider spectrum of runner mechanics than the hyper-segmented, forefoot-dominant Alphafly 4.