 Jacket pocket, and then you take the jacket off because of your backpack, and then your radio's gone. So by putting it on your outer most layer, it will give your backpack an extra, allowing you to boost your shop's productivity by putting all the controls on the mic. Never having to fish the thing out of your backpack solves a lot of the issues we were having. And it's very tough, too. It's built to be used in the element. Yeah, yeah, even more so. The 2.0 is fantastic.