Please see pictures for condition. Material: The upper is made from ZQ Merino wool, which is soft, breathable, and temperature-regulating. Sole: The midsole is made from SweetFoam, a sugarcane-based EVA that provides cushioning and comfort. Sustainability: Allbirds focuses on using eco-friendly materials and practices. The laces are made from recycled plastic bottles, and the insoles contain a wool blend and corn-derived foam. Fit: Allbirds generally fit true to size. They are unisex, so you can refer to the size guide for men's and women's conversions. Care: You can spot clean the shoes or machine wash them on a gentle cycle in a delicates bag.