I purchased this jacket from LeatherUp. First, my chest size is 44 so I chose a medium based on other jackets I've purchased. The sizing chart will throw you off. The jacket fits me perfectly. This is the first vented mesh jacket I've purchased and I will say it is great. Plenty of air flow thru the mesh and the "armor" in the shoulders, elbows and back is non-intrusive and does not impede movement. After receiving the jacket I rode 150 miles in upper-90's temps with high humidity and it was surprisingly comfortable. It has Velcro and zippered cuffs. Zippers down the arm to the wrist and Velcro's to tighten around wrist. It also has a zippered quilted liner (removable) for the cooler days. This jacket is well worth the money and will help to maintain ATG-ATT even on the hottest of days. I would highly recommend.
**Update** That first ride I took with jacket was on a Honda Rebel 250 with no windshield. Plenty of air. Next ride was on my Vulcan Nomad with windshield. No so much air because of windshield. I felt slightly warmer. Other than that, the jacket is great.