Rae and David Liu leveraged their complementary skill sets to start a business that's been profitable every year since launch. With complementary professional skill sets under their belts, the siblings decided to start a direct-to-consumer brand under DC International's umbrella: Leatherology. In the years since, Leatherology has grown into an 8-figure brand, even amid supply chain volatility and economic uncertainty. Entrepreneur sat down with Rae and David to learn more about their successful growth strategies — and what's next for the brand. "We pride ourselves on maintaining a profitable business," David adds, "one that can weather ups and downs over the years.