I know this isnt the right season for it (at least not here in illinois), but I got this jacket a little while ago and I love it. It's about 65% mesh so it's very breathable, adjustable waist, removable shoulder and elbow armor and a pocket for separately sold back armor. It's really comfortable and fits really well, especially since I have long arms and when I'm leaning over on my other bike (a yamaha Yzf600r), the back is long enough it doesn't ride up. below about 55-60 degrees it gets a bit chilly to wear without something under it, I just switch to my winter jacket when it gets that cold though.
It's about $200, or at least that's what I paid and the same prices online that I could find. So far solidly made and durable. I like it a lot. I reccomend it to anyone riding in heat, especially with a fairing like my RT.