Braveman's slim fit is a european style cut, with a trimmer fit through the body and leg. Not suited for broad body types, instead we'd recommend the braveman classic fit. The number in the size refers to your chest measurement. Measure chest under arms and across your shoulder blades, keeping the tape level. If your measurement is 38', you would wear a size 38. Waist size is a standard 6' drop from the jacket, subtract 6 to find the waist size. For example, a 38' jacket comes with 32' waist pants. Lengths come in: short, regular, and long. Find your length below. S: 5''4' to 5''7' tall r: 5''8' to 6''2' tall l: 6''2' to 6''5' tall jacket: notch lapel with pick-stitch detail two-button style jacket one hanky pocket 2 exterior flap pockets double vented sides two darts at waist tailored back four buttons at cuff fully lined trousers: double fastened 2 vertical slash pockets 2 button-through welt pockets on seat unhemmed for customizable length dry clean only, 100% polyester note: pants come long an unhemmed and will require tailoring. Please factor in alteration time when ordering.