This $500 shoe is about to take over your running club convos

London Marathon winner Sabastian Sawe holds up the Adidas shoe he wore during his record-breaking marathon.

Alex Davidson/Getty Images

• Sabastian Sawe ran the London Marathon in 1:59.30, smashing the world record.
• The Kenyan long-distance runner wore Adidas' Adizero Pro Evo 3 sneakers during the race.
• Dubbed the "supershoe," these sneakers go on sale on Monday.

A sub-two-hour marathon was considered an almost impossible feat.

That was until Sunday, when...