Allbirds Launches The Tree Flyer, It’s Most Performance-Focused Running Shoe Ever
All things being equal, most runners would be more than happy to opt for sustainable shoes over ones that use synthetic petroleum-based materials. The trouble is that the performance drop-off from the best running shoes to sustainable shoes is too steep for many runners to accept.
The Allbirds Tree Flyer aims to change that. It’s a lighter, Vionic Sneakers more performance-focused shoe than the brand’s previous running option, the Tree Dasher 2.
A range of natural materials are used in the Tree Flyer. The knit upper is made from a eucalyptus-based tree fibre and the outsole uses natural rubber. The SwiftFoam midsole is made from castor beans and not only requires less energy to produce than the Sweetfoam used in the Tree Dasher, but is also lighter and more responsive.
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