So comfortable but a little snug for my liking. Worn lightly, no major flaws. Currently selling for 135 on Allbirds.com From the website: The Tree Dasher 2 is the next evolution of our everyday active shoe with more responsive foam, extra grip, and an improved fit to keep you moving, and nature winning. The Tree Dasher 2 has a carbon footprint of 5.48 kg CO2e. Learn more about carbon footprint labeling and our commitments to reduce our impact. Best For: Everyday walks, jogs, and light workouts. No-Slip Heel Fit: Improved heel collar helps lock the ankle in place. A Cushier Crash Pad: Sportier, angular heel shape softens impact. Easy Slip-On Design: Single-piece knit upper makes getting out and staying active effortless. Sustainable Materials: FSC-certified TENCEL™ Lyocell (eucalyptus tree fiber) upper SweetFoam® midsole made with sugarcane-based green EVA FSC-certified natural rubber outsole Bio-based nylon eyelets Shoe laces made from recycled plastic bottles Castor bean oil-based insole foam ZQ merino wool heel lining