adidas Originals Firebird Loose Track Pants. The Firebird Loose Track Pants bring a fresh take on classic tracksuit bottoms. Inspired by the legendary Firebird silhouette, they offer a vibrant design and modern edge. The loose fit and mid rise design provide a relaxed, comfortable look, while the soft knit tricot and iconic 3-Stripes deliver a premium feel with signature adidas design for timeless appeal and standout style. Pair them with your favorite trainers and a matching jacket for a complete adidas Originals look, whether you’re heading out for the day or kicking back and relaxing with friends. 100% Recycled Polyester. Machine wash. Imported.