I too needed a jacket to wear over the body armor and neck brace. This is worth the price so far, not crash or rain tested. It has a couple of back vents, the sleeves can be zipped off or just opened a ways under the arms, and the cuffs can be opened large to let air flow up your arms. 2009 MSR Trans Jak This jack is designed to fit over body armor, and it does. Got a good closeout deal ($67.97) at Atomic-Moto.MSR Trans Jak Yours truly sporting a RockGarden Flak Jacket and Leatt neck brace under the jacket. The RockGarden Flak Jacket has a back protector that would make a Stegasaurus jealous.