The Firebird Loose Tracksuit Bottoms are big on adidas Originals DNA. Build from tricot fabric, they feature extra wide legs with 3-Stripes down the legs and a Trefoil logo. Built for comfort, movement, and all-day wear, you can keep it original in the comfort of these track pants! Firebird Loose Tracksuit Bottoms | Pants & Sweats | Stirling Sports