ALLBIRDS Tree Breezer Size 9 Starfish Purple. Only worn twice, selling because I prefer a pointy toe. Lightweight, breathable eucalyptus fiber provides next-level comfort Silky-smooth material Ribbed collar for a perfect fit CORE FEATURES Renewable Materials Machine Washable Minimizes Odor Flexibly Conforms To Your Movements DESCRIPTION Crafted with silky-smooth eucalyptus tree fiber and a fitted collar, our ballet flat never misses a beat.