APL (Athletic Propulsion Labs) is not a fashion designer, but rather a sports footwear and apparel brand that was founded in 2009 by twin brothers Adam and Ryan Goldston. APL specializes in creating innovative and high-performance athletic shoes and apparel that are designed to enhance the performance of athletes. The brand has gained popularity in recent years, particularly among fitness enthusiasts and professional athletes, for its unique and stylish designs that combine form and function.