Solum™ is a biomaterials innovator tackling the plastic crisis – the growing threat of plastic waste in our oceans and ecosystems, by redefining what we build with. Their 100% bio-based plant additive replaces toxic petrochemicals in our rubber outsole compound without compromising performance. Traditionally, outsoles rely on fossil-fuel-derived chemicals that harm the environment. Solum’s plant-based alternative uses renewable biological nutrients - the same ones that give trees and plants their strength and resilience. As they wear, Solum’s BioTread™ material gradually releases plant-based nutrients into the environment – helping support healthy soils and contributing to natural regeneration.