Allbirds Tree Breezer ballet flats in grey women’s size 11

Lightweight, breathable eucalyptus fiber provides next-level comfort. Silky-smooth material. Ribbed collar for a perfect fit. DETAILS: Renewable Materials Machine Washable Minimizes Odor Flexibly Conforms To Your Movements Crafted with silky-smooth eucalyptus tree fiber and a fitted collar, our ballet flat never misses a beat. Made in Vietnam. Great condition, not much wear at all. I do find allbirds sizes run small.