Most jackets advertised as "waterproof" have a removable inner liner that is waterproof. This works, kinda, but even if you are dry your jacket is still soaked. It takes time to dry a jacket out, and that's not really practical if you're commuting, or even if you want to go ride the following day. This jacket is waterproof on the outside, and that is awesome. There are only a handful of jackets that are built this way, and they are usually covered in pockets and cost a small fortune. The patrol jacket is much more suited to someone that rides a regular motorcycle on the road versus a dual-sport trek around the world. I'm 6'2", 180lb and the large fits me well with the thermal liner installed, it's a little loose without it. I didn't realize that this jacket was so well insulated that you don't need to bundle up, even when it's cold. At 40 degrees I'm comfortable in a t-shirt under this jacket. Opening the vents keeps it comfortable until about 70, hotter is OK as long as you're not sitting still. Recommended if you want to be dry but not look like you're on an expedition.