For a bit of background, Allbirds is a new shoe company from New Zealand (a country famous for its wool) that made their debut with their Wool Runners — a pair of shoes made from merino wool and other sustainable/recycled materials. They went the direct-to-consumer route (although they do have a few physical locations now) via the Allbirds Website (free shipping and returns). People seem to really dig them and their popularity is skyrocketing.