These are really terrific riding shorts. The form-fitting, temperature-regulating shorts are made of Merino wool in a 9-panel design, translating to a fatigue-free ride via proper support in all the right places. Merino wool is naturally moisture-wicking and dehumidifies your body, so you won’t find yourself sitting in a pool of sweat no matter how long you ride. These things really work, and they look and feel good, too. Give your butt a break. M (31–33), L (34–36), XL (37–39).