New in box Allbirds Wool Dasher Fluffs are running shoes that use nature-made, shock-absorbing materials for maximum stability during everyday runs. They are made with merino wool on the upper and within the shoe itself. They are machine washable and made with sustainable materials. Wool Dasher Fluffs Highlights Fluffy Machine-Washable Merino Wool Cushioned Midsole For Soft Landing Tested By Pro And Amatuer Runners