Breathable Knit Flats, Made From Natural Materials for All-Day Wear Excellent Used Condition--Only worn a few times. US Size 9 Lightweight, breathable, and effortlessly sleek, the Tree Breezer is your go-to flat. It has a carbon footprint of 2.7 kg CO2e. Learn more about carbon footprint labeling and our commitments to reduce our impact. Best For: Day-to-night, warmer weather, everyday wear Thermoregulating Material: Lightweight, breathable eucalyptus fiber provides next-level comfort Versatile Design: Wear-with-everything classic style, great for the office Sustainable Materials: FSC-certified TENCEL™ Lyocell (eucalyptus tree fiber) upper SweetFoam® midsole made with sugarcane-based green EVA Castor bean oil-based insole foam