Finding inspiration from the natural world, Allbirds is kind to the environment. From uppers made of the finest, softest merino wool as well as fiber from eucalyptus trees, to outsoles made from sugarcane and shoelaces from recycled plastic bottles, you won’t find a more renewable, sustainable shoe out there. Even their boxes use recycled cardboard. Breathable and lightweight, Allbirds will make you feel like you’re walking on a cloud.