The shoe worn by the fastest marathoner is out of stock, but the Adidas Adizero Adios Pro 4 is just as good an option for a less expensive price tag. The shoe is lightweight and responsive, with carbon-infused energy rods in the midsole and a rocker profile. Testers found the outsole grippy, making the shoe a reliable racer even in dicey weather. The Adidas Adizero Adios Pro Evo 3 —worn by sub-2 London Marathon winner Sabastian Sawe —sold out in 2 minutes after it went on sale the day after the race. Unless you’re one of the lucky big-spending runners who snagged the $500 pair, you’re probably reeling like the rest of us and wondering what’s the next closest thing. Since its release in January 2025, the Adizero Adios Pro 4 has been a tried-and-true racer among RW staff, testers, and ilk. Beginners will appreciate its stable platform despite the dynamic sculpting of its chiseled almost-decoupled heel and forefoot.…