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Allbirds

Men's Tree Runner

•Best For: Walking, warmer weather, everyday wear •Upper: FSC-certified TENCEL™ Lyocell (eucalyptus tree fiber) upper •Sole: SweetFoam® midsole made with sugarcane-based green EVA •Insole: Castor bean oil-based insole foam Our breathable, silky-smooth sneaker made with responsibly sourced eucalyptus tree fiber treads lightly in everything you do