San Francisco based sneaker start-up Allbirds recently opened their first NYC concept store in Soho, complete with—wait for it—a human sized hamster wheel to test shoe durability. In honor of the opening, they’ve designed custom laces inspired by New York City’s subway lines alongside a new, limited-edition, midnight blue colorway. We love the sustainable ethos behind each pair of shoes-they’re largely engineered from temperature-regulating, odor-minimizing merino wool that’s inspired by co-founder Tim Brown’s Kiwi upbringing. (They’re also ideal for anyone who doesn’t like wearing socks.) Grab a perch at their shoe bar to be fitted if you need extra attention.