Allbirds Women's Tree Runner, Blue, Size 5

Our lightweight and breathable shoe, made from sustainably sourced eucalyptus fibres, is kind to your feet and the planet; Perfect for: Walking, warmth, everyday wear; Versatile design: a timeless model that goes with everything, great for travel.Our Tree Runner has a carbon footprint of 4.52 kg of CO2e.Upper made from FSC certified TENCEL™ Lyocell (eucalyptus fibre)SweetFoam® midsole made with the first green EVA from sugarcaneSourced thermoplastic polyurethane eyeletsShoe laces made from recycled plastic bottlesInsole foam made from castor oilNewer models may feature a TENCEL™ based sole, which has a lower carbon footprint, instead of the wool sole shown in the image.Care tipsAre you looking for machine washable trainers that won't lose their shape? All our shoes go straight into the washing machine. First, take out the insoles and laces. Pop your trainers into a delicate bag (or even a pillowcase) and throw them in the washing machine. Choose a gentle cycle with cold water along wit