User blog comment:JadenLan/Volume 3 Trailer - New characters teams weapons stuff/@comment-4010415-20151024143717/@comment-4010415-20151024145308

His sunglasses aren't around his neck. They're clipped onto the collar of his shirt. I've seen people do that all the time.

Take one of the parts that goes on one of your ears, fold it, and slip it onto your shirt collar so it's on the inner side of your shirt while the rest of the sunglasses are on the outer side.