Sustainable footwear and apparel company Allbirds made its public debut on the Nasdaq on Wednesday, and CFO Mike Bufano joined Cheddar's "Between Bells" to discuss the IPO and the company's $3.3 billion valuation. Bufano attributed its recent success to product offerings and expanded brick and mortar locations. "There's lower returns when people go to a store and then there's no outbound shipping when people go to a store as well. So, the stores are both great brand beacons, they're profitable in and of themselves, and they help the overall margin profile of the business," he said.