FIREBIRD TRACK PANTS THAT MAKE A VINTAGE STYLE MODERN.Take a fresh look at a classic. The inspiration for these adidas Firebird track pants comes from a vintage Japanese design. They're also made with recycled materials. Who knew that upcycled plastic waste could be transformed into your new favorite pants? This product is made with Primeblue, a high-performance recycled material made in part with Parley Ocean Plastic.
