Thom Browne Mens Bottoms. Fashion category: Pants & Leggings. SKU: MTT030A 06146 035. Color: Med Grey. Thom Browne Medium Grey 4-Bar Track Trousers. These trousers feature a distinctive 4-bar stripe detail on the left thigh. They are designed with a button front closure, an elasticated waistband for comfort, and include side slip pockets as well as button-fastening jetted hip pockets. Crafted from 100% wool in Italy, they are finished with a signature striped grosgrain loop tab at the back waist.