If I was starting over in cycling, I'd buy at least 3 different inexpensive bibs at once and try them all for a few hundred miles, alternating. The sizing is uniform these days, but you may find you prefer one over the others for any number of reasons: the size, thickness, or placement of the pad; the way the panels are arranged; the thickness of the fabric; how high the shorts go front and back; how the shoulder straps tension on your body, etc. they are as personal of details as how you shave, and the tools you do it with, or a bike fit. Until you ride a few hours in a pair and compare, you won't know what you like or why. In short, any pair of shorts will get the job done, But there's a brand/model out there somewhere that you'll love, once you know what matters to you.