What Our Gearhead(R) Experts Are Saying:"I have been running in the Adizero A 5in Short on track days and tempo runs, and the mesh construction is genuinely as light and airy as anything I have worn. It disappears at pace, which is exactly what a performance running short should do."When the workout calls for everything you have, the last thing you want is gear that slows you down or gets in the way. The Adizero A 5in Short from adidas strips things back to what matters, delivering a lightweight mesh running short built for speed-focused sessions where every ounce and every degree of airflow counts. The material blend of 52% recycled polyester and 48% plant-based bio polyester keeps the construction sustainable without compromising the performance properties that make it worth reaching for on hard days. A regular fit and 5in inseam give you the range of motion to open up your stride fully, and the mesh construction keeps air moving through intervals, tempo runs, and track sessions where heat builds fast, and ventilation is not optional.