Brand New!!! New with tags, never been worn. No box Allbirds Tree Breezer Flats Size 10.5 in Mustard Yellow Crafted with silky-smooth eucalyptus tree fiber and a fitted collar, our machine washable ballet flat never misses a beat. Lightweight, bouncy, and wildly comfortable, Allbirds shoes make any outing feel effortless. Slip in, lace up, or slide them on and enjoy the comfy support.