Wrinkle Test: A quick way to test the quality of the wool from the suit is to grab the cuff of a pant leg and firmly squeeze.  That’s right: I’m telling you to purposely try to wrinkle the wool.  If, after a minute or so, the wool remains wrinkled after you release the pant leg, we recommend you move on to a better quality wool suit.

This wrinkle test becomes important after a day at the office, during which you sit at your desk, elbows – and jacket – bent.  To all of the investment bankers out there: You may have stayed at the office overnight, but you don’t have to look like it.  Get a suit that passes the wrinkle test. Disclaimer: If you just throw your suit on your bedroom floor, even the best ones will become wrinkled.

Canvas Test: Between the exterior cloth and the lining of the jacket, every proper suit has a layer of cloth called a canvas.  High quality suits will have this canvas hand-sewn into the jacket.  Lesser quality jackets use a process called fusing, in which the lining is, essentially, glued to the jacket.  The canvas is entirely hidden, and you cannot see it unless you literally rip the jacket open.  Some designers will tell you that there are new innovations in fusing that make the fused jacket just as good as hand-stitched ones, but I’m not entirely sure if I believe them.  A jacket with a canvas will fit better, especially across the chest.  Plus, the canvas also gives the lapel its roll.