Details Renewable Materials Machine Washable Minimizes Odor Flexibly Adapts to Your Movements Made with silky-soft eucalyptus fiber and a fitted collar, our ballet-inspired flat never misses a beat. Made in South Korea and China. Sustainability Our Tree Breezer has a carbon footprint of 2.93 kg CO2e. Some styles may include a wool-lined insole instead of the TENCEL™-lined insole shown. As a certified Climate Neutral business, Allbirds offsets its emissions by funding high-impact carbon projects. Care Guide Remove the insoles. Place the shoes in a delicates bag (pro tip: a pillowcase works too). Select a gentle cycle with cold water and mild detergent. Shake out any excess water and let them air dry. The shoes will return to their original shape after 1–2 wears. Want the full refresh experience? Swap in new insoles.