Both Allbirds and Adidas make running shoes. In a lot of ways, they are directly competing companies. It’s refreshing in this regard that the two were able to come together for a common good. The Adizero x Allbirds 2.94 Kg CO2e running shoes mash together one company’s extensive experience in performance running with another company’s mastery of sustainable materials. The result is a pair of running shoes that requires less than 3 kilograms of carbon emissions to produce—the lowest ever for Adidas.
The goal is top-notch and worth celebrating, but the shoes also need to be good for running. Does it matter how much carbon emissions are being diminished if no one wants the product? Making poor shoes that no one buys is still putting more stress on the planet than it’s saving.
Luckily, the Adizero x Allbirds 2.94 Kg CO2e shoes work well—on the whole. I have some hesitations about their long-term durability. These running shoes are definitely firm and primarily meant for quicker-paced runs, but in that context, I like what they offer.
TL;DR
Pros:
Comfortable fit in all aspects
The midsole offers a balance of bounce and rigidness
Cons:
The laces feel fragile
The thin upper might not survive as long as the midsole
Overall, the shoe is very standard, with a regular fit, lace closure and textile upper. The midsole is made with 17 percent material derived from sugarcane, and the upper includes recycled materials.
The rubber outsole is a bit curious. It appears smooth, but it doesn’t feel smooth or slippery while running. The most noticeable specification for me was the 5.4 ounce weight.
Sustainable Materials
After trying these shoes, I think the most interesting part is their materials. If you didn’t already know that lowering carbon emissions was the their goal, I don’t think there’s much that gives that away—these running shoes don’t feel compromised. But still, some of their material choices might stand out as unique.
The upper, for example, is very thin. There are plenty of thin uppers on shoes out there. Typically they’re in service of a cooler, breezier feel on your foot. In this case, the upper is thin for cutting back on the amount of material used. It’s flexible enough that it doesn’t stay upright on its own.
Out of the box, these shoes are noticeably lightweight—slightly unbelievably actually. The tongue is a puffy foam that feels nice but looks cheap, like it was a second thought. The midsole is firm but bendable. The laces are the most delicate I’ve ever put my hands on.
Seeing the shoes from a distance, it’s less obvious that there’s not much between your foot and the pavement. Up close, however, it’s much easier to see that excess has been cut from the product.
The minimal material is less of a concern for support, or even comfort, and more of a worry when it comes to durability. I’ve had plenty of running shoes develop holes in the toe area. So, that gives me pause here.