Today is a big day, at least for two brands, Adidas and Allbirds, as it marks the release of the latest iteration of their low carbon emission shoes, the ADIZERO X ALLBIRDS 2.94 KG CO2E. Announced last year, the new shoes are an evolution of the FUTURECRAFT.FOOTPRINT and "seek to demonstrate that low-carbon running shoes can be delivered at scale", as Adidas explains.Other brands also have their low-carbon or even carbon-neutral running shoes – such as the Brooks Ghost 14 – but what makes the ADIZERO X ALLBIRDS 2.94 KG CO2E different is that it combines ...