adidas Originals - Firebird Track Pant W (Tech Brown/Ocean) - Clothing: Rock the Firebird Track Pant on your next workout. Features welt pockets, an elastic waistband, drawstring tunnel and woven 3-stripes on both legs. Trefoil on left thigh. 31" inseam (size Med). Materials: 100% Polyester Shiny Tricot.